AFAIK no. The point of DRM is to prevent recording / playing the media on a device without decryption key (authorization). So the goal is different than TLS that is used by the client to ensure the content is authentic, unaltered during transmission and not readable by a man-in-the-middle.

But do we really need such protection for a TV show?

"Metadata" in HLS / DASH is a separate HTTP request which can be served over HTTPS if you wish. Then it can refer to media segments served over HTTP (unless your browser / client doesn't like "mixed content").