Found the following (old!) tip handy:
3. Cut the chase and link to the interesting part
Linking to a video where the real action starts at 3 minutes 22 seconds, wondered if you could make it start at 03:22? You are in luck. All you have to do is add #t=03m22s (#t=XXmYYs for XX mins and YY seconds) to the end of the URL.
FWIW, the collection is from some years back -- and some of the comments suggest that some of the tips no longer work.
As an example of how this might be useful...
The following set of links show a sequence of design diagrams for the Yamba Android sample example application covered in the Android Bootcamp video series:
Didn't figure out how to not have the video automatically start playing though...