Downloaded the m3u8 and the following was listed:

#EXTM3U
#EXT-X-STREAM-INF:BANDWIDTH=2121091,RESOLUTION=896x504,CODECS="m p4a.40.2,avc1.4d001f"
1800K/1800_slide_twv1.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=559938,RESOLUTION=400x224,CODECS="mp 4a.40.2,avc1.42c01e"
450K/450_slide_twv1.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=985571,RESOLUTION=512x288,CODECS="mp 4a.40.2,avc1.42c01e"
800K/800_slide_twv1.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=1425340,RESOLUTION=640x360,CODECS="m p4a.40.2,avc1.4d001f"
1200K/1200_slide_twv1.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=2908735,RESOLUTION=960x540,CODECS="m p4a.40.2,avc1.4d001f"
2500K/2500_slide_twv1.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=4023049,RESOLUTION=1280x720,CODECS=" mp4a.40.2,avc1.640029"
3500K/3500_slide_twv1.m3u8