More referring to the continuity outside of the movies :P The Bardock thing... Varies, tbh when it comes to it being considered canon.No, there were ton of time manipulation during the original z timeline. Including Bardock who time traveled to before the saiyans to fight Chill and so he discovered his super saiyan form. Bardock also arguably time traveled mentally before his death to a time when Kakarot his son was a adult and was presumably fighting Frieza.