For those shacked up in Knoxville, Tennessee and relying on DirecTV for their tube service, we've excellent news. Starting today, you can catch the Big 4 -- ABC (WATE), CBS (WVLT), FOX (WTNZ) and NBC (WBIR) -- in high-definition without resorting to an OTA antenna. The addition of Knoxville brings the satellite provider's grand total of markets with HD locals up to 72, reportedly "representing more than 74.3-percent of US TV households." 'Tis a shame all that SEC football on CBS is so many months away, but hey, at least you've got March Madness to look forward to, right?

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