I noticed since yesterday, that WBBM actually does better on 12 than they did on 3, though I was able to receive their old dignal channel of 3. Low VHF is very suseptible to interference. During the time it rained a few days, I noticed 3 pixelate a lot. Since WBBM moved to 12, not so much. Even WLS back on 7 is better. Chicago will still have a Low VHF station after June 12th. I don't know how soon WOCK-CA plan to switch to channel 4 for their digital, as they have a CP for it. It'll stay a Class A station, but according to the FCC site, it'll cover more area than their channel 13 does now.