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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. Don’t publish new content at nighttime. Since not all users disable notifications for the night, you risk inadvertently disturbing them. Some Telegram Channels content management tips Public channels are public to the internet, regardless of whether or not they are subscribed. A public channel is displayed in search results and has a short address (link). 2How to set up a Telegram channel? (A step-by-step tutorial)
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