Sitcom Heaven, or Hell?

I listed the best sitcoms of each decade HERE.

Incredibly, every day at 6:30pm three of these (70's, 80's and 00's) are on at the exact same time. An embarrassment of sitcom riches, all at once. More incredibly, this also seems to be the only thirty minutes in the whole day when the sitcom of the 90's (Seinfeld) is NOT on. So.