The first 2 days are confirmed so far, the other 3 are still in the works:

Monday June 11th:
8PM: "Oh, Dale!; Main Event; Tasteful Affair"
Guests: John Ritter ("Three's Company"), Sherman Hemsley ("Jeffersons"), LaWanda Page (Sanford & Son), and Jaclyn Smith (Charlie's Angels)
9PM: "Help, Murder; Isaac the Groupie; Mr. Popularity"
Guests: Diahann Carroll ("Julia") and Jim Nahbors (Gomer Pyle USMC)

Tuesday June 12th:
8PM: "Dear Beverly; Strike; Special Delivery"
Guests: Al Molinaro (Get Smart/Odd Couple), Eva Gabor (Green Acres), Leslie Nielsen, and Robert Urich
9PM: "Novelties; Rose Is Not a Rose; Too Rich & Too Thin"
Guests: Don Adams (Get Smart) and Rich Little


The rest is still in the works:
Wednesday June 13th:
8PM: "Gopher the Rebel; Cabin Fever; Pacific Princess Overture"
Guests: Eve Plumb (Brady Bunch), Don Porter and Pat Morita (Happy Days)
9PM: "Long Time No See; Bear Essence; Kisses & Makeup"
Guests: Howard Keel (Dallas), others not announced

Thursday June 14th:
8PM: "Salvaged Romance; Our Son the Lawyer; Gopher's Daisy"
Guests: Joan Rivers, others not announced
9PM: "Watching the Master; Starting Over; Last Heist"
Guests: Patrick Macnee, Marion Ross (Happy Days), others not announced

Friday June 15th:
"Crew Confessions / Haven't I Seen You? / Reunion"
Guest: Don Knotts (Andy Griffith Show, Three's Company), Julie Newmar (Batman), Jean Pierre Aumont, Jane Wyatt
dont know about the other episode for Friday.....all I know is that the first 2 days are confirmed

Each night for an entire week (June 11th-15th), TV Land presents two hours of The Love Boat featuring some of TV Land's biggest stars in each episode. Among the present and past TV Land (and Nick-at-Nite) stars joining Captain Meryle Stubing (Gavin MacLeod), Doctor Adam Bricker (Bernie Kopell, who also played Conrad Siegfried on Get Smart), Burl "Gopher" Smith (Fred Grandy), Isaac Washington (Ted Lange), Julie McCoy (Lauren Tewes), and Vicki Stubing (Jill Whelan) will be:

John Ritter - Three's Company

Sherman Hemsley - The Jeffersons

LaWanda Page - Sanford and Son

Jaclyn Smith - Charlie's Angels

Diahann Carroll - Julia

Bob Crane - Hogan's Heroes

Forest Tucker - F-Troop

Don Adams - Get Smart

Juliet Mills - Nanny and the Professor

Morey Amsterdam - The Dick Van Dyke Show

Rose Marie - The Dick Van Dyke Show

Don Knotts - The Andy Griffith Show

Jane Wyatt - Father Knows Best

Abe Vigoda - Barney Miller

Ron Palilio - Welcome Back, Kotter

Audrey Meadows - The Honeymooners

Maureen McCormick - The Brady Bunch

Mike Connors - Mannix

Robert Vaughn - Man from U.N.C.L.E.

Look for more posts with specific episode information!

Each night for an entire week (June 11th-15th), TV Land presents two hours of The Love Boat
featuring some of TV Land's biggest stars in each episode.

The Monday, June 11th episodes will be:
8 p.m.
Episode # 2 with three subplots:
In OH, DALE, John Ritter (Three's Company) plays Dale, a rejected suitor hot on the trail of the girl he loves, who happens to be a heartless fortune seeker named Joann
(Jennifer Shaw). When Joann boards ship to be with wealthy Peter Pringle (Mark Thomas), Dale is forced to masquerade as a woman because the only cabin available on ship must be shared with Susan (Tovah Feldshuh) -Matters are complicated when Dale, in drag, catches the Captains eye.
In THE MAIN EVENT, Maurice and Stella Marshall (Sherman Hemsley-The Jeffersons- and LaWanda Page-Sanford and Son) attempt to salvage their stony 23 year marriage by taking a second honeymoon. Enroute to dinner with the Captain, they get stuck in the ship's elevator and rediscover each other.
A TASTEFUL AFFAIR, stars Jaclyn Smith (Charlie's Angels) as Jeanette Bradford, a neglected young wife on a solitary cruise, tailed by a handsome private eye, Dennis Kingsley
(Dennis Cole-Felony Squad). But detective Dennis has trouble arranging professional and emotional priorities when he falls for the lady whose husband has hired him to catch
Jeanette in a compromising situation.

9 p.m.
Episode # 5 with three subplots:
In HELP MURDER, Denise and Bret (Michele Lee and David Groh) are a married couple getting away from their three kids for the first time. When Bret and cruise director Julie Mccoy get together to plan a surprise birthday party, Denise gets the notion her husband is playing around and planning to dump her at sea.
Isaac (Ted Lange), the bartender, falls head-over-heels in love with Roxie Blue (Diahann Carroll-Julia) a glamorous star traveling incognito in ISAAC THE GROUPIE. Roxie and
Isaac have a good thing going until the sophisticated Lady realizes the relationship is much more than a casual affair.
Jim Nabors (Gomer Pyle, U.S.M.C.) plays a crashing bore who suddenly becomes a shipboard socialite because a few celebrity seeking passengers mistake him for a notorious jewel
'thief in MR. POPULARITY.

The Tuesday, June 12th episodes will be:
8 p.m.
Episode #13 with three subplots:
As Wendy and Sam Bradly (played by Dori Brenner and Robert Hayes) board ship, Wendy laments the
loss of the father she scarcely remembers. Believing her departed dad was a noble sea captain, Wendy forms an attachment to a devilish old purser named Teddy (Bob Crane-Hogan's Heroes) who is very busy trying to keep his girlfriend Ginger aboard ship in FAMILY REUNION.
In TOO HOT TO HANDLE, George and Sally's (Kathy Bates) honeymoon is destined for disaster. Whether
it be his dislocated back, her severe sunburn or his poison ivy nothing goes right for the newlyweds.
Checkout clerk Bill Edwards and his wife, Doreen (Bruce Solomon and Judy Luciano Adams), are overwhelmed by the fuss made over the Loudons and a man named Beatty (White) in CINDERELLA STORY.

9 p.m.
Episode #69 with three subplots:
In APRIL'S LOVE, April Lopez (Charo) brings along her husband-to-be, "Honest Tex" (Forrest Tucker-F-Troop), a man the crewmembers instantly dislike. They think he using her
and try to change April's plans to tie the knot, although they may lose her friendship.
In HAPPY ENDING, Bill and Mice Robinson (Don Adams-Get Smart- and Juliet Mills-Nanny and the Professor) board the ship with the intention of finishing their very last writing assignment together - and finishing their marriage. However, strange mishaps occur while they are trying to finish the script.
In WE THREE, Lee Meriwether and Kyle Aletter star as Martha and Laura Rogers. A widow, who is very close to her daughter, Martha is shocked when they accidentally run into Laura's real father, Tom Thorton (Ross Martin). Laura, unaware that Thorton is her dad, strikes up a fun, platonic relationship, much to her mother's chagrin.

The Wednesday, June 13th episodes will be:

8 p.m.
Episode #24 with three subplots:
A reformed prostitute and her true love are played by Caren Kaye and Christopher George, with Jack Carter as the one-time "John" and Jayne Meadows as his wife in THE BUSINESS OF LOVE.
Jessica Walter plays the captains old flame in CRASH DIET CRISIS.
Rose Marie and Morey Amsterdam (both of The Dick Van Dyke Show) are the fun-lovers who help bring Annette Funicello and Michael Callen together in I'LL NEVER FALL IN LOVE
AGAIN.

9 p.m.
Episode #59 with three subplots:

In CREW CONFESSIONS, Isaac shocks the crew when he writes about them in his scintillating novel, causing havoc among his co-workers.
In HAVEN"T I SEEN YOU, a man (Don Knotts-The Andy Griffith Show, Three's Company) has the problem of trying to convince people that he is not a well-known star. However, once he becomes
friendly with a woman (Julie Newmar) on the ship, he must convince the lady he is not who she thinks he is.
In REUNION, when the husband and wife (Jean Pierre Aumont and Jane Wyatt) are reunited, they share a secret, and no one knows their true relationship.

Thursday, June 14 - 9pm #075 - Another Time, Another Place/Doctor Who/Gopher's Engagement Guests: Phyllis Davis, Bert Parks, Maureen McCormick, Audrey Meadows, Jayne Wyman, Dennis Morgan
Friday, June 15 - 8pm #608 (Two Hour Movie) - A Model Marriage/This Year's Model/Original Sin/Vogue, Rogue/Too Clothes for Comfort
Guests: Ann Baxter, McLean Stevenson, Camilla Sparv/Christina Ferrare/Robert Vaughn, Morgan Brittany, Jayne Kennedy/Mike Connors, Elke Sommer/Debra Clinger, Dick Shawn, Richard Gilliland


Those are the up to date episodes.

More info: http://www.desiluweb.com/TVLand/_LoveBoatMarathon/