Using a camera to take a picture of your favorite moments of your favorite shows on the television is so twenty plus years ago. Thanks to streaming these days, anyone can watch just about anything on their computer, so all you have to do to capture your favorite moments is to just hit the “Print Screen” button on your keyboard and the screenshot is automatically taken. I don’t know how to take screenshots on a mobile device, but I’m very sure they have that capability as well.
Put simply, the only reason why anyone these days would waste their time with taking pictures of television screens would be if they’re too naive or ignorant to realize the easier option, or if they’re simply so obsessively a vintage enthusiast that they refuse to do things any other way.