With BP, buying coverage and aggressively reselling movies you just broadcasted it is possible to buy the satellites on day 3 and 4. To start, you need the Whodunit movie "Rear Window" and fill its 3 spots with Nipponix, which pays 185000, then send 2 good 100-120k movies afterwards ideally for some 5m spots. On day 2 BP and Camel spots. Day 3 satellite. Without Rear Window it can take a bit longer, day 5 or 6 maybe.
Here are the guys who figured it out with a bit more detail, but in german:
http://www.madtv-online.com/forum/topic.php?tid=441
Here is the list for the ratings each movie brings at each hour (german,too,sorry):
http://dlh.net/cheats/pc/deutsch/mad+tv/hinweise2.html
Rear Window is "Das Fenster zum Hof".
Edit: And yes thats right, Pretty Woman and Batman are the best movies in the MadTV world.