My channel is dedicated to helping preserve the history of classic video games through the form of longplays. A longplay can be considered the opposite of a speedrun, and is designed to:

Showcase gameplay principles and mechanics in detail
Explore majority of levels and secrets where possible (level skips are generally avoided)
Show game ending/multiple endings where possible

Videos are captured using a lossless codec, then upscaled (typically 8x) and transcoded to H.264 for upload to YouTube. Some videos retain 1:1 pixel mapping, while others are converted to 4:3 aspect ratio; I'll choose whichever format looks best for the game in question.

Cheats are never used as part of recording (unless a game simply cannot be completed without them), but the vast majority of videos are recorded using save states, tools, or some other workflow methodology to assist in the capture process. Online guides and FAQs are often used, and I'll create homemade maps if no such resources exist.