If the open doesn't start, click here
Telegram News
How to Create a Private or Public Channel on Telegram? 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. A new window will come up. Enter your channel name and bio. (See the character limits above.) Click “Create.” Click “Save” ; The Channel name and bio must be no more than 255 characters long
from us