The cheapest DTV tuner option would be to go on Ebay and buy an old Voom box. They go for under $50 and work just fine. Make sure the seller states it is ACTIVATED. If the box dies, no problem, toss it. Also, for $150, you can buy a USDTV box at Wal Mart. They're closing 'em out but I've seen them at two stores. They're very basic but do the trick.

I disagree with purchasing a TV with an integrated ATSC HD tuner. Such TVs are MUCH more expensive. Yes they're higher quality but you can't beat the value proposition of a 32" flat screen HDTV with tuner for under $1,100. (I was wrong, the 26"ers are $600 or so, the 32" are $1000 or so. this is a pretty amazing deal on one though.) NO flat TV of like size is available with an in-built ATSC tuner for anywhere near that price.