Breakdown of system; Component 'A' is the television tuner - it requires Component 'B', in this case an Antaenna, in order to see channels and tune to them.
Component 'A''s video and audio outputs are connected to the rear of a patchbay and are fed to Component 'C', also connected to the patchbay's rear plane, via patching
from the operator end (the front). 'C' has RCA audio and video input connections and VGA video output + 3/8 TRS audio out.