A new window will come up. Enter your channel name and bio. (See the character limits above.) Click “Create.” To edit your name or bio, click the Menu icon and select “Manage Channel.” Content is editable within two days of publishing 3How to create a Telegram channel? 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.
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