I have a Slingbox Pro HD with the antenna connected. I can setup channels without problem. However, there are two channels that are not viewable. These channels are viewable in the setup window only, and not when attempting to view them in the normal way. TVs in house connected to same antenna can view these two channels. Also, these two bad channels are on the same frequency as a channel that is viewable without problem.
Location - 60504 (signals from Chicago, IL)
Details from advanced setup window:
11.1 WTTW DT 671.0625 WTTW-HD ( viewable, no problem)
11.2 WTTW DT2 671.0625 WTTW-DT ( viewable in setup window only, not viewable in regular window)
11.3 WTTW DT3 671.0625 WTTW-DT ( viewable in setup window only, not viewable in regular window)
Also, the TV connected to the Antenna Out detects these two channels, no problem.