I know that seasons 1-5 are on DVD I have been told that they are edited. I have few episodes from the original broadcasts I'm hoping to get more.

Here are the episodes I currently have from the first five years.

Season 1
E1 George Carlin / Janis Ian, Billy Preston 10/11/75 Original NBC Broadcast with commercials
E2 Paul Simon / Art Garfunkel, Randy Newman, Phoebe Snow 10/18/75 Original NBC Broadcast with commercials
E3 Rob Reiner 10/25/75 Original NBC Broadcast with commercials
E5 Robert Klein / Abba 11/15/75 Original NBC Broadcast with commercials
E7 Richard Pryor / Gil Scott-Heron 12/13/75 Original NBC Broadcast with commercials
E12 Dick Cavett / Jimmy Cliff 1/31/76 Original NBC Broadcast with commercials
E23 Louise Lasser / Preservation Hall Jazz Band 7/24/76 Original NBC Broadcast with commercials

Season 2
E5 Steve Martin / Kinky Friedman 10/23/76 Original NBC Broadcast with commercials
E8 Paul Simon / George Harrison 11/20/76 Original NBC Broadcast with commercials
E9 Jodie Foster / Brian Wilson 11/27/76 Original NBC Broadcast with commercials
E12 Ruth Gordon / Chuck Berry 1/22/77 Original NBC Broadcast with commercials
E15 Sissy Spacek / Richard Baskin 3/12/77 Original NBC Broadcast with commercials

Season 3
E15 Christopher Lee / Meat loaf 3/25/78 Original NBC Broadcast with commercials

Season 4
E3 Frank Zappa 10/21/78 Original NBC Broadcast with commercials
E6 Carrie Fisher / The Blues Brothers 11/18/78 Original NBC Broadcast with commercials
E7 Walter Matthau 12/2/78 Original NBC Broadcast with commercials
E10 Michael Palin / The Doobie Brothers 1/27/79 Original NBC Broadcast with commercials
E11 Cicely Tyson / Talking Heads 2/10/79 Original NBC Broadcast with commercial
E15 Margot Kidder / The Chieftains 3/17/79 Original NBC Broadcast with commercials
E17 Milton Berle / Ornette Coleman 4/14/79 Original NBC Broadcast with commercials
E19 Maureen Stapleton / Linda Ronstadt, Phoebe Snow 5/19/79 Original NBC Broadcast with commercials

Season 5
E19 Steve Martin / 3-D, Paul McCartney 5/17/80 Original NBC Broadcast with commercials

also looking for episodes of Fridays you can read the post here for more info: http://www.sitcomsonline.com/boards/showthread.php?t=308466 & also looking for episodes of SNL from the show's sixth season: http://www.sitcomsonline.com/boards/showthread.php?t=304962

Happy Trading!!