Common TV sitcom plot devices...

[Bennyboy]

The vasectomy. Leads to porn, masturbation jokes aplenty..

Friend loans friend money, friend worries friend spends unwisely.

Character goes out with other character and eats hot food ( I think I saw that one twice today!)while maintaining that he can stand hot food.

[flying rabbit]

1. Simple misunderstanding

leads to wacky shenanigans -damn near every episode of three's company.

[KittyWampus]

2. Husband forgets wife's birthday, anniversary, mother's day gift.

[Archae]

3. Kid makes a "profound" statement, audience goes "Aww..."

Cosby turned that sitcom staple on it's head when he said to Theo, "That is the DUMBEST thing I've ever heard from you!" :D

[CreekDog]

4. SITCOM DIET!

everyone eats beef wellington or fried chicken and dieter gets 3 peas and stick of celery.

laughter ensues! (not really)

well, once, only once when Red Foreman said, "this isn't food, this is what food eats!"

:rofl:

[Bennyboy]

5. The POT episode.....

Every sitcom has one.

Best Barney Miller
Worst Roseanne.

[MilesColtrane]

6. Baby time

Lucy invented it, and it has flourished since, at least, "Friends".

[XemaSab]

7. Man and woman who are "just friends"

get stuck staying in a hotel or other potentially awkward situation. Yuks ensue.

[Mojambo]

8. tvtropes.org

Warning. This website will take over your life if you're not careful.

http://tvtropes.org/pmwiki/pmwiki.php/Main/HomePage

[Radical Activist]

9. The Dad is always an imbecile.

[Radical Activist]

10. Being forced to lick the diaper clean.

Oh wait, that was only Family Guy. Seth McFarlane is one sick puppy.