The channel and the frequency is not the same thing. I found this article on Wikipedia, which should answer your questions.
http://en.wikipedia.org/wiki/Television_channel_frequencies
You could try contacting the station (WLOS13.com has thier contact information). You could also try contacting the owner (Sinclair Broadcast Group) at 410-568-1500. Thier VP of engineering is Del Parks. I'm sure his office could tell you about WLOS or any other Sinclair station. Del is very...
