Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your 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. 4How to customize a Telegram channel? Telegram users themselves will be able to flag and report potentially false content. Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.”
from us