Well, after installing the 15k and 22k resistors, the picture is still b/w on the Sharp TV. Looks ok on the Samsung. Here is a bit of a clue. Last time (10k and none), I got a brief flash of color before it went b/w. This time, however, it did NOT do that. It was just b/w.
At this point, I am waiting for my transistors so I can build Ben Heck's "reloaded" circuit.
But I am willing to try other ideas if you have any.
Darryl