The modern world died at 3.32pm in St Louis, Missouri, on 15 July 1972. The dynamiting of the notorious Pruitt Igoe housing scheme was a noise that resonated around the world, at least according to architecture critic Charles Jencks in his 1977 book The Language of Post-Modern Architecture.
DT: Digital Television (used in TV callsign) DT: Displacement Transducer: DT: Doing Time: DT: Domain Theory: DT: Double Time (on overtime forms) DT: Double Torsion: DT: Double-Throw (switch) DT: Downtime: DT: Driver Training: DT: Detoxification: DT: Deuterium-Tritium: DT: Development Type: DT: Diphtheria-Tetanus (vaccination) DT: Drive Tire: DT: Dialog Telekom PLC (Sri Lanka) DT: Direct TV: DT: Drunk Tank: DT: Dragon Tails (webcomic)
PSIP is a bit of information that has at least one part: it tells your TV what channel to really use when you punch in a channel number. Every broadcast has PSIP data in it that basically says... I know you're watching channel 36 but tell the user it's channel 4. When they ask for channel 4, tune to 36..