What are the channels for wrestling?

The WWE can be found on the following channels:

Raw - USA Network

NXT - SyFy

Superstars - WGN

Smackdown - Currently the CW, but plans are in order to move it to SyFy

TNA can be found on Spike.

ROH can be found on HDNet.

Check your local listings for these channels.

Also, it's possible that independent or developmental promotions may be found on some of your local channels. I'd encourage you to check around your area for local promotions and see if they have television deals.