Sitcom episodes for a cold, rainy/snowy day. There are many other topics already on holiday episodes.

M*A*S*H - The Long-John Flap
http://namtab.com/mash/SSN01_19longjohn.gif

M*A*S*H - For Want of a Boot
http://img4.wikia.nocookie.net/__cb20131202232029/mash/images/thumb/7/79/MASH_episode-2-17-For-Want-of-a-Boot-Hawkeye.jpg/240px-MASH_episode-2-17-For-Want-of-a-Boot-Hawkeye.jpg

Taxi - Scenskees from a Marriage: Part 1
http://s3.postimg.org/s1zrh9yxv/Taxi_S05_E04_DUAL_DVDRip_Xvi_D_htibiza_avi_snapsho.jpg

:-)

Laverne & Shirley had many wintery episodes showing the girls bundled up in their jackets coming in from being out in the snow.

I'm not sure of the episode titles but "Newhart" had many because it was located in Vermont.

Very cosy episodes for cold nights:

Taxi - Call of the Mild
http://s30.postimg.org/x7443ak5t/Taxi_S03_E07_DUAL_DVDRip_Xvi_D_ptvm_avi_snapshot_1.jpg

The Odd Couple - Bunny Is Missing Down by the Lake
http://www.sitcomsonline.com/photopost/data/730/Bunny_is_Missing_Down_by_the_Lake.JPG

Frasier - Breaking the Ice
http://4.bp.blogspot.com/_EqMG0t0vo6k/TIZJrR1-MSI/AAAAAAAAA-k/W-_tgh4xThg/s320/Ep44.jpg

Do you know similar episodes?

MASH: "Crisis"

Roseanne - Roseanne and Jackie take Crystal out to a bar for a girls' night out to cheer Crystal up after her boyfriend dumped her, and Dan stays home with the kids while a snowstorm hits Lanford.

Are You Being Served? "Cold Comfort" - The store turns off the heat to save money while a cold snap is going on and the employees try to do their jobs while freezing.

Golden Girls - On a rainy day, Blanche, Rose and Dorothy stay home while Sophia goes out and they talk about how she has nothing to fulfill her life but we see Sophia at the supermarket, volunteering at a hospital and spending time with friends.

Designing Women - The tornado episode. One of the funniest shows they ever did.

A couple of "Home Improvement" episodes such as "Baby, It's Cold Outside", "You're Driving me Crazy", and "Some Like It Hot Rod" (Though there's some mentions about Christmas...it ISN'T a Christmas episode)!

MASH: "Crisis"

Really, brilliant episode! :-)
http://namtab.com/mash/SSN02_45crisis.gif

Cheers - The Cranemakers
http://s8.postimg.org/x6yu27elx/Cheers_S07_E16_DVDrip_Hun_Xvi_D_Gege_avi_snapshot.jpg

Call Mr. Plow
That's my name
That name again is Mr. Plow

An ALF story for a rainy day:
On the Road Again
http://s3.postimg.org/7fejkpt1f/alfep11g.png

I Love Lucy: Lucy in the Swiss Alps

Happy Days: Rules to Date By

Mary Tyler Moore: The Snow Must Go On

Call Mr. Plow
That's my name
That name again is Mr. Plow
what show was that?

The Honeymooners went on their rent strike in the middle of winter, the landlord turned off their heat and eventually evicted them into the street. (General rule: any rent strike in a sitcom will occur during the winter. See, Bob Newhart, Odd Couple)

Beverly Hillbillies were pining for snow, so Mr. Drysdale used movie equipment to conjure up a false blizzard, complete with wolves' howling, that raged only around their mansion.

Kramer is approaching hypothermia while George is toasty in his puffy Gore-Tex coat.
I like the scene in that HONEYMOONERS episode when Norton whines "BUT DON'T WANNA STAY IN MY APT.!"

what show was that?
Simpsons!