Content pages should never include first and second-person pronouns such as you, your, I, me, my, et al. Third-person terms such as them, they, their, and the viewer should be used instead.
Articles should never address the reader. Thus, imperative sentences (because they contain the understood pronoun you) should never be used. Interrogative sentences shouldn't be used either, as they are posing a question to the reader, even if done rhetorically. Exclamatory sentences can show bias, which should not be present in content pages. The only expection to this is in the caption for the infoboxes, which should say "watch this video/episode on YouTube".
The exceptions to the above rules are on message walls, on policy pages such as these, blog posts, and the comments section of any page.