A:
that depends if you can watch cable and dish at the same time as long as your TV/computer has a component cable, since this item has a /V Input/output mini-phone jacks - 1 Vp-p, 75 Ohm video, 10 dBV, 47 kOhm audio
S-Video Input/output jacks - 1 Vp-p, 75 Ohm
Y/Pr/Pb (HD) input/output mini phone jacks - 1 Vp-p, 75 Ohm component