[gsmollin]

The HDMI switch in the receiver has a repeater, so the cable length before that is not added directly to the total, because the repeater has gain and regenerates the fast rise & fall times of the original signal. However, repeaters don't have time base correction, so the timing problems do add up, and any timing problem in the repeater adds in too.

Still, the 24 gauge wire should work at 720p.