Check the library catalog.
For all areas of the Performing Arts: Performing Arts Periodicals Database (International Index to the Performing Arts)
For American and Canadian Theatre: North American Theater Online
For recent articles and reviews: Academic Search Complete
To watch a video:
Make sure that you are signed in to OneSearch to get full results: https://www.lib.utk.edu/access/accounts/
Make sure that you are signed up for Interlibrary Services (ILS) to easily borrow materials from other libraries: https://www.lib.utk.edu/request/
Anyone in the UTK community can "request a purchase": https://www.lib.utk.edu/collections/suggest-a-purchase/
Use the "My Account" feature to renew books and keep track of items pinned from OneSearch: https://libanswers.utk.edu/faq/206395
Many databases will offer citation export. This is a handy feature when dealing with a large number of items, but make sure to double check the formatting: https://tiny.utk.edu/owl
Investigate the "recall" feature if a physical item that you need is checked out. (N.B. the other user has ten days to return the item, so make an ILS request if you need something more quickly): https://libanswers.utk.edu/faq/110102
If you are trying to access an ebook, but the item is "in use," simply wait for a few minutes and try again.
To get the most out of Google Scholar, authenticate via the UTK Libraries' link: https://libguides.utk.edu/databases/490
The Studio is a great resource for multimedia projects: https://www.lib.utk.edu/studio/