Advertising on UK TV

[LONDONER]

I thought the UK didn't have commercials save for public announcements (like for safety, raising awareness of public issues, etc), as it was subsidized by tax dollars rather than corporate sponsors. (But it was many years ago when someone explained it to me.)

Has anyone experienced TV and radio ads in the UK and also the USA? How do they differ?

There is the BBC that is funded by the Government and the Licence Fee that is I think £145 per year paid by each household. The BBC has no commercials. Then there are numerous commercial channels as well.