Some mobile devices might have them as well, but you have make sure you get the right kind of HDMI cable for the mobile devices because their ports are smaller and look different.
Make sure the HDMI cable you buy is the length you want. The longer the cable, the more expensive. But you can get a short, cheap one (six feet) for under ten dollars.
After you connect the cables make sure you have your tv turned to the right input channel. It probably won't be the same as your regular channel. For the shows you're looking for go to YouTube and enter the name of the show in the search engine.
I won't guarantee you'll find the tv show you're looking for, but I've found numerous episodes of old shows on YouTube and many movies.
I tend to favor old westerns, cop shows, and movies from the forties and fifties, but there are newer movies and tv shows as well.
Like I said, nothing is guaranteed as far as finding the show you're you want to see. But you can go to YouTube now and search and see if there's stuff you like.
It's actually pretty easy to set up. I have an HDMI cable permanently attached to several tvs. Then it's just a simple matter of hooking it up to the laptop and tuning the tv to the right input channel. I also watch replays of old sports events on my laptop on the tv with the HDMI cable.
Thank you! Will bookmark your post and show the technician something to begin his learning adventure. Perhaps it will make sense to him. I only use the keyboard and the remote control :-))