Hi, my name is Asim and I am a freelance developer with extensive experience in automation and bot development using Python. I have worked with Telegram API before and designed a similar bot. I can develop a bot according to your requirements that listens for messages in other channel/channels and broadcast them to your channel/channels. I can also add option to forward attached files, links, etc. or not. Just send me a PM with further details and I will get started on this right away. You can award me the project once you see the bot working for yourself. If you are interested in my proposal, just send me a PM so that we can discuss further details. Thank you for your time!