PubMed's homepage has changed so that page seen in the video does not match the current interface. This is where you can find the MeSH database on the new homepage. All other aspects in the video are still up to date.
If the free text is available, Click on the Free Text in the Right Hand Column on the Article Record Page
In The Page That Opens, Select the PDF Option on the Upper Right Hand Side
After clicking on an article, click on the Marist College icon under "Full Text Links" at the top of the right hand column on the Article Record page.
This link opens a page with links to full text through library databases or provides access to Interlibrary Loan so that it can be requested from another library.