Invite up to 200 users from your contacts to join your channel Content is editable within two days of publishing The optimal dimension of the avatar on Telegram is 512px by 512px, and itโs recommended to use PNG format to deliver an unpixelated avatar. A new window will come up. Enter your channel name and bio. (See the character limits above.) Click โCreate.โ Each account can create up to 10 public channels
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