Definition of "top-notch"

Received wisdom, in the US and the UK, remains that in a fracturing, splintering media landscape top-notch live sport remains one of the only types of content for which viewers will make an “appointment to view”.

2016 October 24, Owen Gibson, “Is the unthinkable happening – are people finally switching the football off?”, in The Guardian‎, London

North Pier is 1,450 feet long, 28 feet wide, and was designed by Eugenius Birch. It was built with promenading in mind and developed a reputation as a hub for top-notch entertainment.

2020 July 29, Dr Joseph Brennan, “Railways that reach out over the waves”, in Rail, page 48