Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select “New Channel” from the drop-down menu. 1What is Telegram Channels? Done! Now you’re the proud owner of a Telegram channel. The next step is to set up and customize your channel. A Hong Kong protester with a petrol bomb. File photo: Dylan Hollingsworth/HKFP. 5Telegram Channel avatar size/dimensions
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