All great Hanna-Barbera series. 
Just so you're aware, some of the Fender Bender 500 segments have been released to video on a 1991 Hanna-Barbera VHS release called "The Best of Wake, Rattle and Roll" (the syndicated show that showcased the "Fender Bender 500" cartoon segments.)
http://news.google.com/newspapers?nid=1290&dat=19910322&id=sv1TAAAAIBAJ&sjid=QI0DAAAAIBAJ&pg=5286,3779542
(You'll probably have to look for this one on Ebay or perhaps your local thrift stores- you never know what may pop up somewhere...)
"Yo Yogi!" also had at least 1 VHS release-
http://www.amazon.com/Yo-Yogi-3-D-Hanna-Barbera/dp/B000ITGY3A/ref=sr_1_1?s=movies-tv&ie=UTF8&qid=1390842989&sr=1-1&keywords=Yo+Yogi
This video also came with 3-D glasses since the video was in 3-D.
I'm not aware of any VHS releases for "The New Yogi Bear Show".
Of course, hopefully all three of these will eventually come to DVD. In the meantime, maybe someone else will be able to help you out with episodes.
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