I tried accessing the TV antenna connector through the window behind the TV. No luck. The antenna port has a 90 connector attached to it and it points behind the televator shaft. The connector is on one side and points to the other side and the shaft is 4" wide. No way to access from the backside.
I removed the screws holding the Corian that's below the TV in an attempt to access the connector from the bottom. I also removed two of the VESA mounting screws in order to tilt the TV out a little bit and I got a little bit more access from below, but no much. After quite some time, I was able to line up the cable and get it screwed onto the connector, but my reception on the front TV isn't as good as the bedroom TV. I'm thinking that it's not screwed on good enough. My plan is to completely remove the TV next month when I get home and then make the connection. I might even look at reworking the connection in order to avoid having this difficulty next time around (although I hope there isn't a next time).