Wow, thank you guys for uncovering all these options! 👍
@Dracula The Logitech Harmony remote is what I was looking for. I did more digging and found out that Logitech Harmony Elite works with Alexa, which I already have set up at home.
@jpop I had no idea what HDMI-CEC is. Now I'm enlightened and will check my TVs to see if it is enabled. I also have a couple of air circulating fans that use their own remotes but they are IR, so I will need an IR blaster. The Logitech Harmony Elite comes with one. I wish I knew how to tinker with Arduino IR blaster, but it seems a bit over my head. Thank you for pointing to it as an option!
@JazliAziz that is the kind of clean and simple design I like!
@mbravo since you already have some experience with Logitech Harmony remotes, would you still recommend getting one considering I also have Alexa already set up?