You can nominate the MacGyver Reboot for several categories of the Teen Choice Awards until June 8 via Twitter:
http://www.fox.com/teen-choice/nominateI'm assuming following categories are possible:
Choice TV Show: Action - #ChoiceActionTVShow
Choice TV Actor: Action - #ChoiceActionTVActor
Choice TV Actress: Action - #ChoiceActionTVActress
Choice TV Personality - #ChoiceTVPersonality
Choice TV Villain - #ChoiceTVVillain
Choice TV Ship - #ChoiceTVShip
Choice Scene Stealer - #ChoiceSceneStealer
Choice Hissy Fit - #ChoiceHissyFit
Choice Liplock - #ChoiceLiplock
maybe also
Choice Breakout TV Star - #ChoiceBreakoutTVStar
Choice Breakout TV Show - #ChoiceBreakoutTVShow
CBS promotes the Reboot as Drama, so maybe these categories also qualify:
Choice TV Show: Drama - #ChoiceDramaTVShow
Choice TV Actor: Drama - #ChoiceDramaTVActor
Choice TV Actress: Drama - #ChoiceDramaTVActress