A pretty good checklist to maximize youtube results. In addition to what's on this post, you also need to create playlist for your top categories. Playlist using your primary keywords are easily found in google search and are a stronger indication of your channel's expertise than individual videos alone.
ettings. This keeps you from having problems with existing pages.
Copy the contents from About.html and create a page called About
Copy the contents of your other files and make pages with the exact same names. If your page names are different than the titles, you can edit the permalink to match the filename (without the html extension).
Once the data is copied and you have the look you want, change the permalink to /%postname%.html
For PAGES (Not POST) to use the HTML extension you need a plugin as WordPress only applies the Permalink structure to the posts. Recommended HTML Extension Plugin