Each account can create up to 10 public channels Add up to 50 administrators Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select βNew Channelβ from the drop-down menu. 2How to set up a Telegram channel? (A step-by-step tutorial) The optimal dimension of the avatar on Telegram is 512px by 512px, and itβs recommended to use PNG format to deliver an unpixelated avatar.
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