This video was uploaded as a HDR (High Dynamic Range) video. As a result, those viewing this video on a SDR (Standard Dynamic Range) display may experience issues with color accuracy or brightness (i.e. darker than expected). This depends on how good (or bad) YouTube tonemaps the HDR video to SDR. From the Ultra HD Blu-ray release of "Grease" (1978). Back in 2018, when I covered this movie, I used the Blu-ray release of the film. That's because initially, I purchased the "Grease Collection", which didn't come with the Ultra HD Blu-ray release (however it did come with Grease 2 and Grease: Live!). It was only a little while after I got that set that I would also get my hands on the Ultra HD Blu-ray release, and since I'm now covering more Ultra HD Blu-ray releases now than ever before, I figured now would be a good time to cover the Ultra HD Blu-ray release of the film.