How to create a business channel on Telegram? (Tutorial) The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar. Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel. The main design elements of your Telegram channel include a name, bio (brief description), and avatar. Your bio should be: To delete a channel with over 1,000 subscribers, you need to contact user support
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