Not likely unless you run a video and audio feed out from the ouput of the DVR to the other TV......
I dont know about your area but most HD DVRs as I have seen in the Midwest Area cease to offer you the ease of a coax ch 3/4 output that would be easiest for you to run. Plus that picture would be nice for something like this but defeat the idea of HD anyway.
If you do have this output run a coax from that to the tv outside and the box will operate both tv's at the same time with the same delay.
Run the coax into another antB input on the tv if it has 2 or use an A/B switcher to make switching backand forth to regular cable a breeze.....
Be careful if your nextdoor neighbor is watching the same game, youll be able to hear him cheer and grumble and then he'll ruin the game for everyone being 3 seconds ahead....Just kidding on the last part.....
