Look at this page, here:http://www.fcc.gov/fcc-bin/tvq?state...&slon2=&size=9
Let's walk through the listing. I've taken the liberty of editing out the stuff that doesn't matter in this listing:
WSET-TV 13 Z TV LIC LYNCHBURG VA US 302. kW DA
That's the current WSET/13 analog license. (LIC = License) It's running 302 thousand watts in a directional antenna.
WSET-DR 34 DR GRANT LYNCHBURG VA US
I haven't looked inside this, but I believe this was the rulemaking that moved the DT channel for WSET to 34. It was something like 56 before, if I remember right.
WSET-TV 34 DT CP MOD LYNCHBURG VA US 716. kW
This is the answer to your question. It's the construction permit (CP) for the full power WSET-DT facility. I'm presuming MOD = modified. When WSET is all finished, they'll be at 716,000 watts digital.
WSET-TV 34 DS STA LYNCHBURG VA US 17.9 kW
This is what they're running right now, the 17,900 watt signal. DS STA = Special Temporary Authority. It's what a number of stations are running to keep their digital license "warm" until the final power upgrade.