Understand that 2 previously unused transponders have been booked on G19KU. Don't have any information regarding who booked or the format, but have been asked to take signal readings for possible future use.
1) Check AMC 1, and fire up the HD/DVB-S2 box if you have one. They feed stuff up there, and doing a blind scan on that satellite might be a good idea. I seem to remember hearing of multiple feeds up there during the last Winter Olympics.
2) Scan 97W. The summer Olympics were on multiple channels two years ago, which allowed us to watch the opening ceremonies as they happened ... not when NBC wanted us to.
3) Check 72 and 83, which are also used by NBC. It's a crapshoot, but worth looking.