The Short Version
This claim is false. BLS-based data consistently shows the average American household spends roughly $504–$519 per month on groceries. Combined cable TV and streaming costs top out at approximately $153–$278 per month — less than half the grocery bill. The higher "media spending" figures sometimes cited (~$280/month) include internet and mobile services, not just cable and streaming. Even using the most generous estimates, cable plus streaming doesn't come close to matching grocery expenditures for the average household.