So, we were getting hammered at a Lower East Side watering hole the other day, shooting le merde with a former co-worker, when all of a sudden, after our 4th beer, it hit us: ER's never had any time slot other than Thursdays at 10PM, EST. Which, considering at the end of this, its final season, it will have been on the air for 14 years, that's saying something, right? Law & Order and The Simpsons are older, sure, but they've both been rescheduled a few times, right? (Heck, we seem to remember something about The Simpsons going up against the Cos for a while -- and losing.) Even if maybe The Simpsons has been on Sundays at 8PM longer than ER's been on Thursdays at 10, has any other network show held the same timeslot its entire life?
We're dying to answer this one categorically, so we command you, internetizens, to unleash your collective powers and Google this question into answeration!