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.” Channel login must contain 5-32 characters Users are more open to new information on workdays rather than weekends. To delete a channel with over 1,000 subscribers, you need to contact user support
from us