There is a Sports Stack Exchange. Based on their On Topic help page and their Determining our scope meta topic, I'm inclined to think it's on topic there, but there's a possibility it isn't.
You could ask on their meta for them to advise you on whether it's on topic or not, or you could just go ahead and ask it there and find out (via it being left open or closed).
Unfortunately: they don't permit video questions:
The fact of the matter is that we are not here to do this kind of research for you. We are here to provide you answers to questions you have about sports, either playing in them, watching them, the rules, and sometimes some trivia surrounding them. Sports broadcasting is even on topic.
However, what you really want is someone to run a google search to find video of a long past sporting event. That's not constructive under any definition of the term. It's something you can easily do yourself. If you haven't found it yourself (and I'm assuming you've looked from the context of your question) then it's probably not findable by anyone on this site.
Since the one place this would be on-topic has determined this is off-topic, you will probably need to hunt this down yourself.