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. The visual aspect of channels is very critical. In fact, design is the first thing that a potential subscriber pays attention to, even though unconsciously. How to create a business channel on Telegram? (Tutorial) Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.” Administrators
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