How to Create a Private or Public Channel on Telegram? 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. While the character limit is 255, try to fit into 200 characters. This way, users will be able to take in your text fast and efficiently. Reveal the essence of your channel and provide contact information. For example, you can add a bot name, link to your pricing plans, etc. Telegram channels enable users to broadcast messages to multiple users simultaneously. Like on social media, users need to subscribe to your channel to get access to your content published by one or more administrators. Developing social channels based on exchanging a single message isn’t exactly new, of course. Back in 2014, the “Yo” app was launched with the sole purpose of enabling users to send each other the greeting “Yo.”
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