I get Tyler locals via the 722 but yes, I had to get the locals module and there is no way around it. I had a 622 but the hdmi went out and they sent me another 622 but it was dead on arrival. The hard drive was no good so they sent out a technician. All he had in his truck was the 722 but no module. He called dish and told them to send me the module - free! This tech was one of the good guys.
Well, the point of all this is that Tyler will never get HD locals via dish because the market is too small so you must use OTA anyway. I live out a ways and have a big, deep fringe Channel Master antenna with rotor atop a 60' tower. With this set up I get superb HD on all the networks. The only reason I subscribe to dish locals is because the program guide is blank without a locals subscription. Without a locals subscription, when you go through the program grid all the local channels show only "Digital Service". You never know what is playing, what will be on and what to record to the dvr. It is worth the few extra bucks a month to have the programs displayed on the grid, even if you watch only OTA and never watch the dish local channels themselves because they are not in HD.