A Billion for Boris(1984)
OVERVIEW
In this family-friendly sequel to Freaky Friday, teenaged Boris realizes that his television set is somehow receiving broadcasts from the future, so he starts betting piles of cash on horse races and making himself outrageously rich. Boris is on top of the world...until he discovers that something this good doesn't come without a price.
TAGLINE:
With the ability to see the future a young boy looks to win a billion!