What do TV execs and television types read? TELEWEEK of course.
If you look carefully behind NBC executive Jack Donaghy in the latest episode of 30 Rock you'll see TELEWEEK. It's not Variety, The Hollywood Reporter, Broadcasting & Cable but TELEWEEK that the people in television read to stay up to date with what's happening in the TV industry.
The trade magazine is fictitious of course, just like TGS.