I had one of those large, movable dishes on my roof from 1990-93. A storm blew it down and ruined it, cost too much to replace. But during the time I had it, it picked up many interesting things, such as uncensored coverage of the 1st Gulf War and the L.A. riots.
Those were the network feeds. A friend had one of those behemouths in his yard, and it was always a hoot to watch those feed stations. You got to see what all went on during commercial breaks during the evening news, sporting events, morning shows....anything the network did live. I think someone got into trouble for saying some things he shouldn't have said on one of the feeds as well. For some reason I think it was Al Michaels, but I very well could be wrong.