<Tr> <Th> Launched </Th> <Td> August 1, 1981; 37 years ago (1981 - 08 - 01) </Td> </Tr> <Tr> <Th> Owned by </Th> <Td> Viacom </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> 1080i HDTV (downscaled to letterboxed 480i for the SDTV feed) </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr>

When did mtv stop playing music videos 24/7