CBS has renewed three of its reality series, 'The Amazing Race,' 'Survivor' and 'Undercover Boss.'
'The Amazing Race' was renewed for two more cycles for the 2013/14 season bringing its total to 24 cycles. 'Survivor' will return for two more seasons bringing its total to 28 rounds. 'Undercover Boss' will come back for a fifth season.
The 22nd cycle of 'The Amazing Race' and 26th round of 'Survivor' will finish their runs in May 2013.