Wouldn't it be possible to calculate set-up time, intro time, emergency Flash tvt time and whatever other times you'd have a need for, and set check-in for, say, t-15 minutes, and have the broadcast start at the advertised time? Then regulate breaks between games, say 5 mins between each game in a bo3, 8 for a bo5 or what is reasonable for the players, just make sure the viewers know when the next game will be up.
Hypothetical time-table for WCS EU:
0:55 check in players, admins, observers in lobby
0:00 start broadcast, intro
0:05 game starts
[game1]
+5 minutes
[game2]
+5 minutes
([game3])
10 minute break between sets?
etc
If you keep increasing the professionality of the product, it will add to marketability, pull e-sports out of the hobbyist corner and propel it into main stream little by little.
And I still believe sc2 should be syndicated!