Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel. 2How to set up a Telegram channel? (A step-by-step tutorial) Read now 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.
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