WMC seems to be recording in PAL AND NTSC?! Is that even possible?

Recording from an over the air HD antenna from a Happauge HVR 2250 using WMC on Win 7 Home Prem. 64. I can get the four major networks here in the States (ABC, CBS, NBC, FOX), and for some reason, the CBS channel, and only the CBS channel seems to be recording in PAL standard, which, to my knowledge, isn't even used in the US. It's not a huge deal, as the channel still plays fine, but if I want to convert and save the program, that's where it becomes a hassle.

I use Handbrake to convert from WMC format to MP4. Most shows take about the same amount of time that it takes to watch them. (i.e., an hour-long show takes about an hour to convert on my system) BUT, when I try to convert the PAL show, an hour-long show takes about eight hours to convert. I can't be sure, but I'm almost certain that this is a relatively new thing. I convert the shows at night while I sleep, and I used to be able to do 6 or 7 at a time. Lately (last 4 months, maybe?) I've been able to do maybe two if one of them is from CBS.

I've attached a shot of the info from Media Info that shows the PAL listing. I initially thought maybe Media Info was reading it wrong, but the vast difference in conversion time seems to confirm that there's something different going on.

I've looked everywhere for a solution for this, and was hoping someone here could help me out. Thanks!

You might try calling the tv station and ask to speak with their engineer. Could be something wrong at their end.