Don't buy the Apex from Best Buy! (I think it was on sale for $50 at one time)I had some credit at best buy + the $40 coupon so I thought I was getting a good deal not having to pay anything, but I'm wrong. The machine is really slow to start up and slow at responding to the remote, the remote isn't universal so you need to keep your tv remote - it requires two batteries, the remote is kind of buggy too, the volume is really low compared to the actual volume produced by the tv, no buttons to change channel on the machine. The rf connection produces really crappy quality picture. It does have a jack for a digital antenna and s-video connection. I wish I could get that coupon back, plunk down $20 for another box.
I also have a zenith one that I bought from circuit city ($60) and I have to say it is much better. Universal remote which only requires one battery (it's important for me because I can't stand using batteries - bad for the environment), no problems with picture.