If you're over 30, Mr. Siegel was probably the first movie critic you remember seeing on television. He'd been on Good Morning America since 1981 and I remember watching him back in the day. Truthfully, with everybody and their brother being movie critics these days (myself included) I haven't seen a review from him in a very long time, except for his one recent review of Clerks II, where Kevin Smith spewed a number of less than kind comments (to put it mildly) regarding the fact that Mr. Siegel walked out of that film due to a certain extremely vulgar scene. At least I sided with Mr. Siegel on that one.
I know he meant a lot to many people and inspired many of us writing online about movies today to do so.
My thoughts and prayers go out to his family.