Not great, more proof of concept. It looks as bad as some of my own experiments at displaying a Mac or Windows desktop on a TV. More or less quoting a report I wrote in the early 2000s: "Anyone who thinks that this is acceptable should book an appointment at Specsavers."
Some people managed to integrate Mac video output (other than QuickTime) into their presentations. Can anyone find good samples? Ones where the creator explains the hardware and software used? But you have to accept that TV and computer graphics have different qualities and limitations.