X/Z color demodulation.

[old_tv_nut]

Originally Posted by Tom9589

Could it be a situation of Motorola not wanting to pay RCA to use an RCA patented circuit of demodulation scheme? Money and pride are strong motivators.

There absolutely were strong efforts to work around the RCA patents, coupled with court fights to make RCA unbundle their patent package - it did no good to find a work-around if you still had to pay for all the patents anyway. Zenith did not start producing color sets until the industry got more favorable license terms.