Thanks for your continued efforts on this!  I did the Update option from within ppcmc and that fixed things for me, at least for now...
		
		
	 
Indeed, updating yt-dlp does fix this. So YouTube has 2 sets of formats for H.264 (AVC1) video now. The new set is
* 394 (144p)
* 395 (240p)
* 396 (360p)
* 397 (480p)
* 398 (720p)
* 399 (1080p)
The old set still exists (so PPCMC7 is fine for now), but you need a completely up to date yt-dlp to see it. Old set as always is still:
* 160 (144p)
* 133 (240p)
* 134 (360p)
* 135 (480p)
* 136 (720p)
* 137 (1080p)
We still have format 18 (single file video+audio) which is the only reason streaming works. For downloading other resolutions, PPCMC7 currently takes one of the video only formats from the old set and combines it with format 140 for audio (m4a). However, now we have a new set of audio options as well:
* 233 (low quality mp4 audio).
* 234 (high quality mp4 audio).
* 140 (old reliable m4a audio format we've had for years).
Checking out format 234 is good news for us: Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 133 kb/s
Compared to format 140:  Stream #0:0[0x1](eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
So by switching from 140 to 234, we get an extra 5kbs of bitrate for free. That'll be in the next PPCMC7 version. I think it would be smart to offer the newer set of video qualities available as well. We could have for example 'high quality 480p' and `low quality 480p' options (for every resolution).
For reference to all the available formats youtube now offers:
ID  EXT   RESOLUTION FPS CH │   FILESIZE   TBR PROTO │ VCODEC          VBR ACODEC      ABR ASR MORE INFO
────────────────────────────────────────────────────────────────────────────────────────────────────────────────
sb2 mhtml 48x27        0    │                  mhtml │ images                                  storyboard
sb1 mhtml 80x45        1    │                  mhtml │ images                                  storyboard
sb0 mhtml 160x90       1    │                  mhtml │ images                                  storyboard
233 mp4   audio only        │                  m3u8  │ audio only          unknown             Default, low
234 mp4   audio only        │                  m3u8  │ audio only          unknown             Default, high
249 webm  audio only      2 │    1.43MiB   52k https │ audio only          opus        52k 48k low, webm_dash
250 webm  audio only      2 │    1.90MiB   69k https │ audio only          opus        69k 48k low, webm_dash
140 m4a   audio only      2 │    3.57MiB  130k https │ audio only          mp4a.40.2  130k 44k medium, m4a_dash
251 webm  audio only      2 │    3.73MiB  135k https │ audio only          opus       135k 48k medium, webm_dash
602 mp4   256x144     13    │ ~  2.21MiB   80k m3u8  │ vp09.00.10.08   80k video only
269 mp4   256x144     25    │ ~  3.39MiB  123k m3u8  │ avc1.4D400C    123k video only
160 mp4   256x144     25    │    1.03MiB   37k https │ avc1.4d400c     37k video only          144p, mp4_dash
603 mp4   256x144     25    │ ~  4.25MiB  154k m3u8  │ vp09.00.11.08  154k video only
278 webm  256x144     25    │    2.25MiB   82k https │ vp9             82k video only          144p, webm_dash
394 mp4   256x144     25    │    1.36MiB   49k https │ av01.0.00M.08   49k video only          144p, mp4_dash
229 mp4   426x240     25    │ ~  4.36MiB  158k m3u8  │ avc1.4D4015    158k video only
133 mp4   426x240     25    │    1.55MiB   56k https │ avc1.4d4015     56k video only          240p, mp4_dash
604 mp4   426x240     25    │ ~  5.22MiB  190k m3u8  │ vp09.00.20.08  190k video only
242 webm  426x240     25    │    1.96MiB   71k https │ vp9             71k video only          240p, webm_dash
395 mp4   426x240     25    │    1.63MiB   59k https │ av01.0.00M.08   59k video only          240p, mp4_dash
230 mp4   640x360     25    │ ~  8.77MiB  318k m3u8  │ avc1.4D401E    318k video only
134 mp4   640x360     25    │    2.61MiB   95k https │ avc1.4d401e     95k video only          360p, mp4_dash
18  mp4   640x360     25  2 │ ≈  6.17MiB  224k https │ avc1.42001E         mp4a.40.2       44k 360p
605 mp4   640x360     25    │ ~  9.86MiB  358k m3u8  │ vp09.00.21.08  358k video only
243 webm  640x360     25    │    3.32MiB  120k https │ vp9            120k video only          360p, webm_dash
396 mp4   640x360     25    │    2.66MiB   96k https │ av01.0.01M.08   96k video only          360p, mp4_dash
231 mp4   854x480     25    │ ~ 11.19MiB  406k m3u8  │ avc1.4D401E    406k video only
135 mp4   854x480     25    │    3.85MiB  139k https │ avc1.4d401e    139k video only          480p, mp4_dash
606 mp4   854x480     25    │ ~ 12.65MiB  459k m3u8  │ vp09.00.30.08  459k video only
244 webm  854x480     25    │    5.09MiB  185k https │ vp9            185k video only          480p, webm_dash
397 mp4   854x480     25    │    4.31MiB  156k https │ av01.0.04M.08  156k video only          480p, mp4_dash
232 mp4   1280x720    25    │ ~ 16.57MiB  602k m3u8  │ avc1.4D401F    602k video only
136 mp4   1280x720    25    │    6.86MiB  249k https │ avc1.4d401f    249k video only          720p, mp4_dash
609 mp4   1280x720    25    │ ~ 17.46MiB  634k m3u8  │ vp09.00.31.08  634k video only
247 webm  1280x720    25    │    7.46MiB  270k https │ vp9            270k video only          720p, webm_dash
398 mp4   1280x720    25    │    8.09MiB  293k https │ av01.0.05M.08  293k video only          720p, mp4_dash
270 mp4   1920x1080   25    │ ~132.38MiB 4807k m3u8  │ avc1.640028   4807k video only
137 mp4   1920x1080   25    │   89.00MiB 3227k https │ avc1.640028   3227k video only          1080p, mp4_dash
614 mp4   1920x1080   25    │ ~ 76.82MiB 2790k m3u8  │ vp09.00.40.08 2790k video only
248 webm  1920x1080   25    │   58.97MiB 2138k https │ vp9           2138k video only          1080p, webm_dash
399 mp4   1920x1080   25    │   28.89MiB 1048k https │ av01.0.08M.08 1048k video only          1080p, mp4_dash
616 mp4   1920x1080   25    │ ~157.72MiB 5727k m3u8  │ vp09.00.40.08 5727k video only          Premium