If he did, and you have recurring payments charged to it, you need to call all of those companies IMMEDIATELY and get everything switched over.
However, what I'm bothered by here is his making the change without honoring your wishes, or at least coordinating the change with you.
My advice is to have your own separate charge card entirely, that you are totally responsible for.
When I was married I not only never changed my last name, which frankly was far simpler than changing it would have been, but throughout more than twenty-five years of marriage we always had two checking accounts and totally separate credit cards. Both or our names were on both checking accounts, just in case one of us needed to write a check on the other's account, which happened perhaps three or four times in that same twenty-five years.
I can tell you, that by handling our finances that way, we never had to deal with the problem of one person writing a check that then does not get listed in the checkbook and causing an overdraft. I don't think I've ever known a couple with only one checking account who didn't have that happen to them at least once.
As for watching DVDs, does your computer have a DVD player? Pretty much any computer bought within the last five to eight years has one. I don't have a TV, just watch what I want over the internets or directly on the computer from a DVD.