The DVR is currently hooked up to the TV via HDMI. The DVD player is currently hooked up to the TV using composite cables.
From the looks of my TV's specs, the only audio out is digital, which the Pyle amp does not have an input for. I did notice, however, that the TV has a headphone jack on the side of it. Would it be possible then to get a 3.5mm/RCA audio cable and hook the TV to the amp that way??