Back on 74 by @jungle4eva in Dolby Pro Logic II and AAC 5.1

This video contains Dolby Pro Logic II and AAC 5.1 data. Dolby Pro Logic II encodes 6 channels into 2 channels. AVR with support for Dolby Pro Logic II attempts to recover this additional data from stereo stream. AAC 5.1 contains 6 LPCM channels that can be delivered ONLY through HDMI eARC, this only works on YouTube TV Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. No copyright infringement intended. ALL RIGHTS BELONG TO THEIR RESPECTIVE OWNERS