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. It’s easy to create a Telegram channel via desktop app or mobile app (for Android and iOS): How to Create a Private or Public Channel on Telegram? Choose quality over quantity. Remember that one high-quality post is better than five short publications of questionable value. 1What is Telegram Channels?
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