5Telegram Channel avatar size/dimensions A Hong Kong protester with a petrol bomb. File photo: Dylan Hollingsworth/HKFP. Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel. Telegram Android app: Open the chats list, click the menu icon and select “New Channel.” To delete a channel with over 1,000 subscribers, you need to contact user support
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