The Twilight Zone, All in the Family, and Twin Peaks.
<pedant mode: ON> 1) Looney Tunes and The Three Stooges are TV shows. They are shorts that were created to run before and between movies (along with short subjects, newsreels and previews) back in the Pleistocene era before TV (as a large scale enterprise) existed (though cartoon shorts created to play in movie theaters hung on until the mid sixties). So those of you who picked them need to choose again. <pedant mode: OFF>
2) I'm old enough that the ONLY show I've seen listed so far that I could pick is I Love Lucy... While I appreciate the foundation setting it (and The Honeymooners) laid... it is not it for me...
Which brings us to:
Your Show of Shows
or... The George Burns and Gracie Allen Show
I refuse to decide.