STV & ITV's schedules diverge from 7pm onwards.
- You've Been Framed (30 mins) is on STV only, at 7pm.
- Ninja Warrior UK (60 mins) starts at 7pm on ITV, but at 7:30pm on STV.
- Take Me Out (60 mins) is on ITV only, at 8pm.
- Harry Potter film (2.5 hours) starts at 8:30pm on STV, but at 9pm on ITV.
- Therefore STV's late news/new year whatnot is from 11pm onward (STV News first, then Hogmanay from 11:15pm), whereas ITV's equivalent offering is from 11:30pm.
So, it does indeed look like nothing ITN-produced will be showing in STV land after the teatime bulletin.
If you want an innuendo, I'll give you one.