There is a 4K Ultra HD collection of some Peanuts specials which include <italic>A Charlie Brown Christmas</italic>, <italic>It’s Christmastime Again, Charlie Brown</italic>, <italic>It’s Flashbeagle, Charlie Brown</italic>, <italic>A Charlie Brown Thanksgiving</italic>, <italic>Mayflower Voyages</italic>, <italic>Play It Again, Charlie Brown</italic>, <italic>It’s the Great Pumpkin, Charlie Brown</italic>, <italic>It’s Magic, Charlie Brown</italic>, and <italic>Charlie Brown’s All-Stars</italic>.

All in 4K HDR.
The restoration looks really great, though it’s appearance in 4K Ultra HD was unexpected, and people were just baffled, I was really hyped for this one.
This time, all of the specials are in DTS-HD Master Audio 5.1, including <italic>A Charlie Brown Christmas</italic> and the other bonus specials included with the other discs.
I personally would’ve wanted an LPCM 1.0 or DTS-HD Master Audio 1.0 track from the LaserDisc or VHS releases but it’s still okay.
The restorations are either in a pillarboxed 4:3 (1:33:1) fullscreen presentation or a pan-and-scan 16:9 (1:78:1) widescreen presentation.
I am a purist but the 16:9 version actually looks great as far as cropped widescreen presentations of classics go.
But still, 4:3 all the way.

Unfortunately, the included standard Blu-rays aren’t updated in any way whatsoever (just like in the 4K releases of <italic>Blade Runner: The Final Cut</italic> and <italic>The Dark Knight Trilogy</italic>) except for <i>A Charlie Brown Christmas</i> which has an updated Blu-ray with an MPEG-4 AVC encode and DTS-HD Master Audio tracks instead of it’s initial VC-1 video and Dolby Digital audio release.
The other Blu-ray discs are the 2009/2010 Blu-rays with VC-1 video and not-as-shiny video quality.

I am hoping that the 4K discs get cracked so we can use them for restoration purposes.