Suggestion to record video from TV
Personally I use Pinnacle Studio to record the TV shows. I have used it to record over a 100 hours of TV footage till now and I'm pretty happy with it.

What You Need


TV Tuner
Software to record.


For the card you can buy Pinnacle TV Tuner (~ $70), but any compatible card will do. Many good cards are available for a lower price. Just make sure it has a coaxial cable input.

Pinnacle Studio comes along with the card if you buy that. This software can be used to record/edit videos. Recording is straightforward. You can select the encoding format, resolution, quality and begin recording. You can also schedule TV recordings to record when you are not at home.

But once you have the driver for card, the rest is easy. You can use any software to record the feed (including VLC player).

The only thing to keep in mind is storage. More often than not, live recording won't have the best encoding used, so it will take up a lot of space. To take care of storage problems I record in HD only if really necessary. Otherwise I would need additional tools to re-encode in high compression formats (like h264 or h265). Use ffmpeg or Handbrake for that. 

Good luck!