I have a Logitech Harmony Hub that I use to control my TV system. I can turn the system on and off using Alexa but can't figure out how to use it in a routine. I have a routine (Bedtime) that shuts off all the downstairs lights at night and turns on the upstairs bathroom and bedroom lights. I'd like to be able to have the same routine also shut down the TV system but can't figure out how to do it.
Any suggestions would be appreciated, if possible be very explicit I am 75 YO and don't understand a lot of this new technology.