Using Sky Q remote to control LG OLED55C54LA TV

[RBBASS]

I recently changed my LG TV to a newer model. I don't seem to be able to use my Sky Q remote to control the new one. There doesn't seem to be the model code in the Sky Q  list. 
Do you have any suggestions on how I can enable it to control my TV as it did with the previous model?
Are Sky likely to update their listings of registered models?

[PeteRG41]

Just try another code until it works.

Sky Q remotes | Sky Help | Sky.com | Sky Help | Sky.com

"Once you've found your TV make and model, press the volume buttons on your Sky Q remote and see if this changes the volume on your TV. No luck? Select No, try another until you find the right setting."

[RBBASS]

I'd tried that, but none of the 15 options had any effect.
I can use the Sky remote to start up the TV and Sky box, with it going straight to the Sky HDMI input.
However, I still have to use a combination of the remote controls to switch both TV and box  to off.