[pierrefar]

Oh man. Never make fun of users.

Instead, thank them for taking the time to write feedback, explain the situation, and (here is the most important bit) tell them what they can do about.

For example, set up a petition online asking a TV channel to open up on your platform, and ask them to sign it. Or give them address to a decision maker (could be a politician for example) and ask them to write to this person.

You can take this a step further: if a user says he/she works for a TV channel and is sad it's not there, ask them who you should talk to and ask for a referral. Likewise if they have a friend who works there.

You'll need a public page to manage these efforts that is the first port of call and one reference for everything. Say domain.com/more-channels . Anyting descriptive and memorable will do. On this page, write that this page is for helping users get more channels on the platform, and give them references along the tips I mentioned. ANY TIME you engage a user about this topic, provide a link to this page.

And don't forget to give your contact details on this page.

Good luck.