Step 1: Whats needed.
Amplified Speaker(s) if you do not have audio in on the dvd player.
DTV tuner/converter. (We still have the old kind of tv's.) or VCR for analog cable.
Antenna ( i.e. http://www.instructables.com/id/Yet-another-dtv-antenna/) or cable video connection.
Appropriate cable adapters.
Optional: (if you needed something if the power went out)
Dc to ac power inverter.
12v UPS battery or equivalent.
Step 2: Hooking it up:
You will need an RCA male to Mono mini din plug to go from the DTV converter video output to the DVD player. Plug that in.
For the audio you will probably need a mini din female to two rca male adapter cable. plug those in now.
Make sure the DTV converter, the DVD player, and the speakers have power. Turn them all on. Calibrate your DTV player with your antenna if you are not using digital cable input. You can use the remote control of you DTV play to change channels. You can use a vcr with a tuner if you cable is still analog instead of the DTV converter.
Viola you are in business.