Try Nowhere Channel. I think some locals are in there for newcasts, etc. Supposedly USTVNOW can be made to work too, but I think it's really aimed at people that are outside of the United States.
As far as real antennas go, try antennaweb website and enter your info. If you are 50 miles or less from a tower you can probably get it with a little tampering with rabbit ears or an amplified system, etc. Outdoors antennas are better, but not everyone likes those (have to ground them, etc.). We live in a basement apartment and are using an amplified indoor antenna I got from Radio Shack a little while ago. With a little sculpey to tilt it further than it's built to to aim one of the rods near parallel with the floor we can get the local tv station that's only a few miles away. With some strategically placed baking pans and aluminum foil I am also getting a couple of other channels that are about 30 miles to the south and 50 miles to the west... clouds to impact the reception on some things sometimes, but for the most part it works like a charm. The key is to get the signals to bounce the right way.
I used to have a fta satellite setup a couple of years ago. Might try putting that up again someday. Back then (around 2009), Equity had a whole slew of tv channels that were not encrypted - a lot of them very similar to tv land. Unfortunately, they went bankrupt....
http://forums.roku.com/viewtopic.php?f=28&t=46566&p=359897#p359897 -channel lists/tools
http://forums.roku.com/viewtopic.php?f=28&t=64096 -linear channels