I have a "built in" that houses all my components. Getting a look behind each component requires that cables be unplugged and componets pulled out (not enough "play" in cables to turn components around). DirecTV was at my home today switching out my HR21 HD DVR and I'm concerned that they may have just hooked a coax cable to my HR21 rather than the HDMI cable (I looked back behind my HR21 DVR and can see an HDMI cable just floating around in the back, but I've got so many cables I can't tell where the HDMI cable originates from). I can also see what appears to be an optical cable floating around. I can reach back behind and feel what appears to be one HDMI cable hooked up, but I can't tell if that's from my blu-ray player. I can also feel one coax cable hooked to the HR21.
Is there any way to tell, without pulling stuff out, and getting a visual...........if I'm receiving my signal/s via HDMI?
Is there any way to tell, without pulling stuff out, and getting a visual...........if I'm receiving my signal/s via HDMI?