When it was given syndciation in 1975, after 1969 cancellaiton, this was one shown, and I sawe it..maybe the best, LOL-est, Linus ever! (We don't even see Linus before he falls asleep, unlike,say, Disney's ALICE IN WONDERLANDF from 1951 or the Flintstones where Pebbles/Bamm Bamm saing Let the Sunshine in..(see the episode here)
A lot of those cartoon reruns were aired on independent TV stations such as ktvt channel 11 in fort worth \dallas Texas up until 1995 when ktvt channel 11 became a CBS affiliate for Dallas and fort worth then years later became CBS owned and operated
This studio must have had some permission from Disney studios, for the "Song of the South" - Zip it de do dah... song. That is unless it's in the public domain.