As far as Hulu goes, the thing to do is sign up for the annual Black Friday timeframe promo. If you already have a Hulu account, just sign up with a different email. Hulu has been doing this recurring deal for the last, I dunno, five years or so? It has ranged from being $0.99 - $1.99 per month for one year. I realize that this doesn’t do you any good now, you’ll have to wait until next BF for (presumably) the next offer. But there is no reason to not do this deal for the basic Hulu package.
Netflix has never had promo offers, at least not for some time, outside of an occasional first month free trial. Besides looking for discounted gift cards as someone already noted, try searching over at the other famous deal site, you know, the “slippery” one. There has been an off-and-on deal to buy a Google Chromecast that comes bundled with six months of Netflix for more-or-less free.
And yes, as you realize, a Hot Deal is all about a verifiable deal on specific good or services. looking for “useful tips and advice” is Deal Discussion.