I have a lot of trouble with aikido demonstrations. For the audience to be able to see what is going on, the demonstrator usually needs to use very large, slow techniques which look fake. You also rarely see the uke making hard, fast attacks. If he does, it makes it more difficult to respond with a large slow technique that can be seen.
Having said all of that, here’s an aikido demonstration that I really like. The uke is making attacks that we can identify with, and shite is responding in kind. Enjoy.