Originally Posted by whoopadeedoo
Nearly all my digital channels are mapped to channel 0 right now, so I can't even quickly access any specific channel with the number keypad.
How does PSIP work?
It seems without the CC, I will need the STB, right?
What does it mean to have nearly all your channels mapped to channel 0?
Do you mean 0.1, 0.2, 0.3, ... 0.x?
Without knowing what is the problem it is not possible to say whether you need an STB to access HD locals.
You can say that if you want the channel # mappings to match what your cable company uses, then you will need to use CC or STB.
PSIP is a way to carry meta-data for a digital channel. One type of data it carries is a virtual mapping of the channel #. For example, NBC OTA HD might be at UHF 44.x but everybody in your area has it in their head that NBC should be ch4. One aspect of PSIP allows the station to broadcast at UHF 44.x, but for the TV to display the channel # as 4.x. Some cable companies propagate that info onto their systems.
You should determine 2 things before jumping to any conclusions:
1) does TWC in your area send HD locals in the clear. You can check with the appropriate HD thread on the AVS HD reception subtopic
2) determine why the Sharp LCD is not receiving the HD locals if they are in the clear
I have an older Sharp LCD and I have no problems receiving the HD locals from Comcast. The channel #s are actual RF channels #s so I need to tune 119.x, 123.x, etc. but I do get the reception.