With raw sampling enabled (via saa7134 driver in DMA mode), you can implement custom DSP routines to decode weather satellites (NOAA APT) or pager signals.
Microsoft removed native analog TV support after Windows 7. However, the capture function (S-Video/Composite) still works if you force-install the XP driver. pci-tv-capture-card-lw-pcitv-fm-drivers
Finding legacy drivers is an exercise in digital archaeology. Here are the most reliable sources for pci-tv-capture-card-lw-pcitv-fm drivers: With raw sampling enabled (via saa7134 driver in