If you search for “House of Cards” on the TV app, it will show Netflix as an option. Universal search works with Netflix.

It doesn't work for me, and I'm logged into NF. They just discriminate UX based on residence.

In the US at least, Netflix works for search, but it doesn’t show up in the “continue watching” list. I don’t understand their motivation for that. And it means I often end up forgetting I’m watching a Netflix show because I don’t see “continue” until I end up back in Netflix.