UnScramble this Word: r i g e r a i t?

Questions

what tv series starred six female impersonators during its 17 year run?

what tv show centered around a car with a 300 mph cruising speed?

what tv show ended "the story you have just seen is true, only the names have been changed to protect the innocent"?

what tv show made henry winkler a star?

what tv show saw robert culp wearing a nehru jacket & peace pendant?