TGIF? What was the actual best TV lineup?

If you're of a certain age (ahem, mine) it's hard not to associate Fridays with the TGIF lineup on ABC. I can ever remember the little jingle when the block of shows ended: "We'll see you next week!"

Still, while that TGIF anticipation is forever etched in my brain, for me nothing topped Must-See TV Thursdays on NBC in the late 90s/early 00s. A night with new episodes of Friends, Seinfeld **and** ER? Forget it. Best of the best. I legitimately used to refuse to work my mall jobs on Thursday nights for this very reason.

So which night of programming reigned supreme for you? TGIF? Must-See TV Thursday? Sunday nights (any of them) on HBO?