I've created a client/server app which proxy's YouTube searches and transcodes the videos to QuickTime. The server and client are available at
https://github.com/pgodwin/68kTube/
The client is available directly at
https://github.com/pgodwin/68kTube/raw/master/Client/RealBasic/68kTube%20Alpha.sit and I've spun up a VM running the server if anyone wants to test it. The client is written in RealBasic 2.1.2.
Unfortunately, I haven't been able to get QuickTime to open from a URL in RealBasic on 68k, but does work on PPC. Stlil working on a solution, however you can copy the mov URL or open a HTML page in Netscape with Quicktime embedded.
A thread with some development history can be found at
https://68kmla.org/forums/index.php?/topic/28217-supersocket-for-realbasic/
Cheers
Peter