70 years ago - Ted Knight is born.
52 years ago - 18-year-old Ted goes to college to study astronomy.
48 years ago - 22-year-old Ted begins graduate study in cosmic energy.
40 years ago - 30-year-old Ted builds his own Cosmic Rod & becomes the second Starman.
36 years ago - 34-year-old Ted marries his long-time sweetheart Adele Doris.
29 years ago - 41-year-old Ted falls in love with another woman, Doris Lee, and begins an affair with her.
25 years ago - 45-year-old Ted has a nervous breakdown when Doris Lee is killed & his wife Adele leaves him.
15 years ago - 55-year-old Ted retires from adventuring when he grows too weak.
9 years ago - 61-year-old Ted is diagnosed with cancer. the discovery leads to a break thru in David Knight's research, allowing him to become the new Starman.
6 years ago - 64-year-old Ted insists that his son Jack Knight become the new Starman after the death of David Knight.
3 years ago - 67-year-old Ted sacrifices himself to protect Jack Knight's family, telling him to live his life.
The decision to swap Prince Gavyn into Ted Knight's spot in the Justice Society and to give him Ted's costume means that Ted himself is now wearing Gavyn's costume. It's admittedly a tiny bit weird, because Gavyn's costume is geared a bit more towards being a gallant space adventurer than a neurotic scientist, but the shift works if you let it, and it allows the chronology of these characters to function.
Meanwhile, the most important role for Ted to play is the one he does for Jack Knight, a character written by the incomparable James Robinson and easily one of the best singular characters in DC. Ted is his father, someone who's made mistakes in his life and who Jack still holds resentment toward. It's far more important that we understand who he is and what he looks like when he's a sixty-year-old man.