Incorrect Guide Data/Aspect Ratio Problem

Here in Atlanta several networks have changed channels over the past few months. All of these channels still have the guide data from the old network that was originally on that channel before the move. I was surprised to find a KTN Korean language program recorded in place of a RetroTV program. Also Comet channel was added. The broadcaster sends out the video already adjusted from 4:3 to 16:9. If I look at the channel directly with the TV tuner, the TV is set at 16:9 the picture looks correct. The Tablo adjusts it again to 4:3 so the picture is compressed. I wanted to ask if there is anyway to correct the guide data so the guide accurately reflects the programming for that channel as well as get the aspect ratio problem resolved? Thanks!!