There is an open source package called MythTV.
I have been running it from my desktop Linux PC for many years.
About six years ago with the arrival of an HD smart TV I decided to
invest in a dedicated computer. I built it from scratch, adding a TBS
DVB-T2 TV signal collection card.
I am explaining this because apart from being able to receive broadcast
programmes and record those I select, I can use one or t'other browser
to access NetFlix, BBC iplayer and ITV Hub among many others.
The thing is apart from the hardware, it is all free and updated by
masses of contributors. It is available for Windows but an .exe is not
provided. You have to build it yourself.
Instructions are very detailed and patience helps (I wasn't so it took
longer).
It beats being dependent on some bright spark that thinks change =
progress.
If you have a not too old pc doing nothing ....
Best of luck.
--
Mint 20.3, kernel 5.4.0-124-generic, Cinnamon 5.2.7
running on an AMD Phenom II X4 Black edition processor with 16GB of
DRAM.