London Underground and the mechanisms are regularly degreased to lower the potential for fires. The only wooden escalator not to be replaced was at Greenford station, which remained until October 2015 when TfL replaced it with the first incline lift on the UK transport network. There are 426 escalators on the London Underground system and the longest, at , is at Angel. The shortest, at Stratford, gives a vertical rise of . There are 184 lifts, and numbers have increased in recent years because of investment making tube stations accessible. Over 28 stations will have lifts installed over the next 10 years,
The Tube Music Network The Tube Music Network The Tube Music Network, Inc., or The Tube, was an American digital multicast television network. The network was a wholly owned subsidiary of The Tube Media Corp., an independent company that was founded by David Levy in 2003. The Tube focused classic and modern music videos in a format similar to the original format of cable networks MTV and VH1, prior to those networks' shift towards long-form entertainment programming. The network also aired occasional commercials and public service announcements, as well as three hours of educational and informational programming (as mandated by the Federal Communications Commission)