I would also like to add, since the topic of references came up -- yet again

-- that a reference just for the sake of referencing is bad. Again, some of the audience won't get it. But, if you make a layered joke, with one layer that holds a clear joke which the entire audience will understand, and another layer containing a reference which some of the audience will appreciate, then that is a good joke. The entire audience gets the joke, and those who catch the reference get a "bonus" laugh out of it. Not only this, but those who catch the reference will think the writer is "smart" and "witty" for having accomplished this feat, and can feel smart and witty themselves when they explain the joke to the "noobs" who didn't catch it.
Exception that proves the rule:
An exception to the "referencing just for the sake of referencing" rule would be the "ridiculous, overly-obscured reference" joke. This is when the writer puts in an obscene amount of absurdly obscure references in his/her video, causing the audience to be bewildered and confused. The audience doesn't know what is going on, but they feel that the writer must be extremely intelligent, and therefore the jokes must be funny. Thus, just as a 5 year old (who doesn't get the joke) laughs because his parents are laughing, so to does this writer's audience.
In the abridging world, such a writing tactic is known as "pulling an Unwardil."