TC3 I know what you mean. I looked up a few YouTube videos, call them fast-guide or quick-tips. Someone is introducing a nice LH pattern within a few seconds and shows one or two RH licks.
The videos are short and compact, and it is easy to reproduce if I only concentrate on one hand alone. But both hands together is always a struggle. Bottom line: 1 minute video instruction = 1 month hard practice. It does not feel right to spend that much time just for a random picked up 1 minute video clip.
This is the main reason why I love Christians Blues-course playlist so much. He knows where to start from scratch and in which order different LH patterns make sense. And if the LH isn't fancy, it is the right thing to learn at my level.