i am sure that you can watch simpsons episodes at the FOX web site. also try www.thetvscreen.com.
FOX FOX.com Hulu
If you live in america, you can watch all episodes legally and free on the simpsons website.
Go to WTSO.Net. That's where you can watch almost all of The Simpsons episodesgo on youtube.com and type in simpsons episode...... watevaprobably youtubeiwatchsimpsonsonline.com
You can buy it on prime video or watch it on Disney+ if you have it.
dont no
Try going on 'watch the simpsons online' for full episodes of your choice. Type this into Google where a list of them will come up, click on the first one which is free and easy to use as it is the official site for episodes.
Try the link below.
There have been references to SpongeBob in The Simpsons episodes and the character appears in several Simpsons episodes. SpongeBob is also referenced in a couple of Simpsons comics.There are also a couple of references to The Simpsons in SpongeBob SquarePants episodes.
There are several places that The Simpsons could be watched online. The most popular place to go online to watch The Simpsons is through Hulu. Hulu is free and there are several episodes available if you missed more than one on TV.
Try the FOX website & www.thetvscreen.com.
None, the Simpsons as a series didn't air on T.V. until 1989