Some Telegram Channels content management tips The optimal dimension of the avatar on Telegram is 512px by 512px, and itβs recommended to use PNG format to deliver an unpixelated avatar. To edit your name or bio, click the Menu icon and select βManage Channel.β The visual aspect of channels is very critical. In fact, design is the first thing that a potential subscriber pays attention to, even though unconsciously. Developing social channels based on exchanging a single message isnβt exactly new, of course. Back in 2014, the βYoβ app was launched with the sole purpose of enabling users to send each other the greeting βYo.β
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