I agree MOML. The PSIP thing must be very confusing for the average viewer who for so long just turned the dial or punched in the number of the station they wanted and that was all they needed to know.
There are many that just don't "trust" automatic programming options and would much prefer to set things manually.
Hopefully TV manufacturers will recognize these shortcomings and find a way to adapt. My Sony TV does have the option to 'Add digital channels' that doesn't remove channels it's found previously.
Does your Panasonic provide a way to direct select channels even though they aren't programmed in? In the cases of WTOL, WTVG, and WCMZ they're all using their original channel numbers, so remapping to a virtual channel number isn't an issue with them. With my TV, I can manually enter a channel (28.1 for example) and the TV is smart enough to 'add' it if there is enough signal found.
For what it's worth, I've got my admittedly small antenna pointed in a 'sweet' spot for me. I'm able to get 2 (7), 4 (45) , 7 (41), 9, 18, 20 (21), 23 (8), 28, 31 (50), 32, 38 (39), 50 (14), 56 (43), and 62 (44) very reliably. I've been receiving WLPC Ch. 40 about 75% of the time, but have yet to get a signal from WHNE Ch. 26 or W47DL Ch. 47 with the antenna pointed the way it is right now. Same with the Toledo stations - no sign of them either.