Connect indoor antenna to HDTV with only one coax input

[michaelram]

My Bravia KDL-40EX521 has only one coax input. I want to install an indoor antenna to receive local broadcasts in HD, but the coax input is occupied by TV wall cable that provides cable channels without a set top box. How can I install my antenna in this situation without diabling my cable channels provided by my apartment bldg.

 

[popatim]

All cable companies are required by law to include the local OTA stations but in clear QAM encoding, no antenna is needed. Just tune in the station.
19-1 will still be on 19-1 for example. Please note that not all tv's can tune in both cable and qam channels without changing modes so please see your owners manual for the tv for instructions.

 

[americanaudiophile]

If popatims solution doesn't work you can get one of these:
http/www.amazon.com/Cable-Push-Button-Switch-Satellite/dp/B000SO635Y
but you may have a problem with your TV not having scanned and stored all the channels from both sources.