Max Ferguson and Joyce Davidson also carried over from Tabloid as hosts of the newly named series.
Ferguson was later replaced by Alan Miller while Davidson left for the United States to host PM East/PM West with Mike Wallace.
Other persons seen included Robert Fulford, Trent Frayne, Rex Loring and John Saywell.
Towards the end of Tabloid's run, producers introduced more serious news content in an attempt to boost audience interest.
Seven-O-One was cancelled in 1963, with Saltzman accusing CBC leadership of sabotaging the nature of the program with the more serious approach.