For what's it worth, I contacted DISH again about Chattanooga, TN locals only having 2 of the big 4 in HD. I pointed out how their competition was one step ahead of them because Directv launched all of the locals in HD yesterday. I told the CSR that DISH needed to get with the program.
He said DISH is working very hard to get the other two channels in HD, which are ABC and NBC. He also stated it should be very soon because they were well aware about Directv launching all of their locals in HD for Chattanooga. He said he was able to see an update stating that it would happen, but an exact date was not known at this time.
So, I am staying put. I had considered getting an OTA antenna, but I'm not spending the extra money. Competition is a good thing, so maybe DISH will now do something to try and keep up with Directv.