The optimal dimension of the avatar on Telegram is 512px by 512px, and itβs recommended to use PNG format to deliver an unpixelated avatar. In the next window, choose the type of your channel. If you want your channel to be public, you need to develop a link for it. In the screenshot below, itβs β/catmarketing.β If your selected link is unavailable, youβll need to suggest another option. 3How to create a Telegram channel? Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select βNew Channelβ from the drop-down menu. You can invite up to 200 people from your contacts to join your channel as the next step. Select the users you want to add and click βInvite.β You can skip this step altogether.
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