WPVN-CD is streaming 6 subchannels, and yes the first two are 720p and not efficiently encoded. I just looked at 24.2 and it’s dreadful for sports. By contrast, pixelation on the WCIU 26.X subchannels is less prevalent, even though there are 6 streams with 26.1 and 26.2 in HD. The new Lx 5.3 pixelates pretty heavily at times; technically the 5 streams making up WMAQ 5.X and WSNS 44.X are combined into RF channel 29. My guess is that NBC/Telemundo does not want to sacrifice the quality of 5.1 and 44.1 by allowing the other subchannels more bits.