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. Add the logo from your device. Adjust the visible area of your image. Congratulations! Now your Telegram channel has a face Click “Save”.! Telegram Android app: Open the chats list, click the menu icon and select “New Channel.” To delete a channel with over 1,000 subscribers, you need to contact user support
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