From their introduction in the 1970s until the time we left the UK in 2004, the High Speed Train (HST or Intercity 125) was ubiquitous on the UK network. At this point, they have almost entirely gone from service with only a few routes still having them at this point – hardly surprising given their age. Some are operating on charter services and one charter train came up to Long Marston from Paddington for RailLive each day. It was rather fun to see an HST again. Even at this age, it is still a pretty sleek looking train.