A new window will come up. Enter your channel name and bio. (See the character limits above.) Click “Create.” Some Telegram Channels content management tips 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. Your posting frequency depends on the topic of your channel. If you have a news channel, it’s OK to publish new content every day (or even every hour). For other industries, stick with 2-3 large posts a week. Telegram Android app: Open the chats list, click the menu icon and select “New Channel.”
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