Yes, although they are often reused for different episodes.
No. The first episode is the Christmas episode and didn't have the regular opening credit sequence. The first episode to feature the now familiar opening shots ends with the Simpsons rushing to the couch, sitting down, and nothing else.
The episode of the Simpsons's with the cake couch gag is in Season 22. The episode airs on September 26, 2010 and has the Simpsons sitting on a couch eating cake with a banner hanging overhead congratulating Fox.
On your couch.
The 500th Episode
HOMR
Simpsons
The Simpsons is written by following this basic format as a template, The Simpsons opening credits come on followed by a couch gag, if an episode is too short they will run the longest version of the opening credits and the longest couch gag and if an episode runs for too long they show the shortest opening credits, the first act on the Simpsons usually contains scenes with no particular storyline leading up to the opening of a story, this story then further progresses in act 2 and usually reaches a climax then in act 3 the story gets resolved, for example, if homer and marge break up then act 3 would focus on getting them back together. An episode of the Simpsons like a lot of other shows usually contain filler material in the form of an itchy and scratchy cartoon!Note:i(natalie)only fixed some spelling errors and put in some capitals i did NOT write all this!
You no longer can submit your own couch gags. All you can do now (as of 02|2013) is vote on the three finalists.
ive been looking but i havent found it
sit on her couch and eat potato chips with a can of bud, watching the simpsons
It's their trademark gag, and they want to keep it fresh.
The opening hasn't change very much in the show's run so there are many of the same elements that have existed since 1989. Bart skateboarding, the chalkboard gag, the couch gag, Lisa playing in the school band, Homer at work, Marge & Maggie in the car among others.