Flo doesn't carry any matches or tournaments held in Big Ten gyms. Those, if they will be broadcast, will be carried by BTN, or BTN Plus. BTN comes with your cable package, BTN costs extra and you need BTN to be able to subscribe. Flo's covers a lot of other NCAA events but it varies.
here's all the wrestling covered by BTN
http://btn.com/about/olympic-sports-on-tv/#wrestling
and here's Flo's coverage
http://www.flowrestling.org/ext/wrestling_kickoff/?utm_source=Navigation+Bar&utm_medium=Dropdown&utm_campaign=Wrestling+Kickoff#schedule
the best thing about both are they have flexible monthly contracts. i just canceled Flo after the Southern Scuffle and signed up for BTN Plus to watch the Ohio State Iowa dual. I'll probably cancel BTN Plus after the Big Ten tournament and sign back up for Flo in time to catch the US Open.