By yellow belt, I'm assuming you mean the first belt or 6th kyu in many Aikido schools. The techniques required for 6th kyu will vary depending on what style you practice, and if there are organization requirements.
My school (Aikido Mt. Airy, http://www.aikido-mtairy.com/
) is unaffiliated with any of the main Aikido organizations. Just for an example of what some schools may require, a link to our test requirements is:
We don't have any video of these techniques, but I'm sure there's something online if you look.