Dee,
The card you have
Hauppauge 1196 WinTV HVR-1250 supports NTSC Analog OTA and Cable (non-scrambled), and Digital OTA (ATSC) and Cable (Clear QAM), so you can watch all imaginable sources via its 2 tuners, including even connecting Sat TV and Cable TV STBs via S-Video/Stereo Audio IN. It has only one coax IN port though, hence you'd need to switch & combine coax signals from your sources before connecting them all to this card's Coax IN port.
I wonder if Hauppauge WinTV soft has EPG - look through its
FAQ and Manuals. Most PC-based PVR software packages offer EPG (Electronic Program Guide): go through
Comparison of PVR software packages on Wiki - some of these are quite popular. Since you appear to have a newer PC with PCI-E bus, it may be a good idea to try new Windows 7 OS Media Center among others, as Windows 7 has already being released to print on DVDs (limited distribution so far, but
some folks reportedly managed to find it), and WMC 7 is said to be an excellent choice for all TV signal sources. If you decide on installing a new OS, do it on a separate hard drive or partition (in that case you'll need to learn to boot the PC with the OS version you want for a task at hand, since some of your other soft may be too old for Windows 7 to handle), and make sure to install the latest PC Card Drivers supporting the OS. Simpler pass would be to install a PVR package with EPG support (some of most popular are BeyondTV, SageTV, MythTV) - check if it has a trial period to play with.