APC for a " tv and various audio/video things "...

So why you need APC?
if you are out of power you could finish watching last 30 min of
american idol?

Why, any show that worth anything will have about 20 - 30 reruns.
Well unless it is Bush speech, cause noone can handle his speech in
reruns, small bits and you can stil see Cheney in the background
pulling
strings attached Bushes mouth.

Get whole house surge suppressor.

4 not

Lightning can just as easily come in your satellite dish, cable ,
antenna, phone or no apparent line and affect your tv. You have alot to
protect. A mains surge plus lightning arrestor are a good place to start