I've probably seen that pilot and every other episode 5 times. I remember staying up Friday night to watch it. And I taped it when I wasn't home.
FWIW the plotline of Calderon killing Tubbs' brother was continued in the 2-hour opener to season 2, wherein Tubbs goes to NY to track him down.
Mann has ripped himself off quite a bit... Heat was more or less a high-budget remake of a made-for-TV movie he had done a few years prior - but I'm certainly a fan.