Digital TV getting worse reception now?

Ok so during Memorial Day Weekend of 2008 I bought a brand new Samsung HDTV. Reception was great. I picked up all sorts of digital channels. Probably about 20 of them (antenna, not cable or dish). So this past Friday, I go to watch tv and nothing. I rescan. I now have 5 channels. But still no only one channel has a picture. I move the antenna and rescan again. Now four channels. Again with only the one having a picture. Let me note that the channels that don't have a picture are still sending enough to let me know what is currently on (thru my info button). But here's the kicker. My parents, who have the same brand tv, just a little larger and bought two months prior, has excellent reception. And is just downstairs. I currently am using a little rabbit ear antenna, it has a hoop as well. My parents are using the 3m antenna outside that's up about 45 feet. Yet I had comparable reception, with maybe just as many distant channels.

So, even though I thought I was completely ready for and well informed about the DTV transition, does anyone have any info on what could be wrong? It's just confusing as I was ALREADY receiving these channels for the past year.