I have or rather our adult son did in ours using Direct TV or over air. He used a stand along Hard Drive with enough memory to store about 300 + movies an or TV shows, something like a terabyte?
I can find out how he did it if you don't find someone else. All I do is turn it on and press record on the remote and then playback when we want to watch something recorded.
Bud & Alice (Bud posts)
Abby- Black Lab-TDI Certified
Hopey-Yellow Lab-TDI Certified
2017 30' Classic
2015 F350 6.7 Diesel Crew Cab
USAF - Military Training Instructor (TI) - 68-72