Phono Cable Breakin

Looking for a little help here.

I have a new phono cable coming in and given I only listen to my main stereo only an hour or 2 a day, it will take months for the cable to get to it's recommended break-in time.

So, can I just hook it up to my TV, which runs a good 12 hours a day or my garage stereo which I can run longer without using the tube life on my main stereo?

If I can do the TV, I can hit the recommend time in a week.

I don't know if I believe in break-in time, but I do like removing all doubts,

Thanks