A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
The question you're asking is designed to solicit opinions or best-practices on a particular topic, with the goal of reaching community consensus.
Questions about tags on the main site.
Criteria for what is on-topic and off-topic for this site.
For questions about the scheduling of events, most commonly Topic Challenges.
Questions regarding the identify-this tags: identify-this-movie, identify-this-tv-series, identify-this-actor and identify-this-episode
"Design" refers to front-end elements, such as page layout, coloring conventions, etc.
Questions regarding how to deal with Spoilers on the main Movies & TV, including hiding spoilers in the anti-spoiler quotes, spoilers in titles, and general site policies towards spoilers.