How to record video from TV?

Question

Video processing

Tell me how to record video from a TV to a media / laptop and then put it into processing.

Answer 1

In order to record an analog TV program, from an individual or collective antenna, you will need a TV tuner, one of these or similar.
If we are talking about a digital broadcast TV program and about Russia, then you will need a DVB-T2 receiving device .
If we are talking about a satellite channel, then everything depends very much on what kind of equipment for receiving satellite TV you already have.
And of course, you need software. As for the software, I can recommend that you familiarize yourself with this site .

Answer 2

With such a formulation of the question, the answer is - using a video camera.
And to record a signal from a television antenna, it is customary to use TV tuners, or boards and video capture devices.