Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel. Choose quality over quantity. Remember that one high-quality post is better than five short publications of questionable value. How to build a private or public channel on Telegram? The Standard Channel 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.
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