If I'm honest I question this strategy. My first opinion is that it wont work. For the simple fact that is someone is searching for "your website keyword video" your homepage is going to be much less relevant than the videos page is.
I think that Google only really takes the canonoical tag as a guide and wont fully trust it because essentially what you're trying to do is manipulate the rankings which I would advise against.
Life is like riding a bicycle - in order to keep your balance, you must keep moving.