Yes, dozens and dozens. The most popular ones to get for mainstream TV and Movies are 1 Channel, IceFilms and live streaming via Mashup. If you search on Youtube "installing XBMC", most of the tutorial vids show you exactly how to install this stuff. It's very easy. You will probably want to watch how to turn on all of the very piratey features in Mashup so at least you'll know how to do that if you want to go there.
Customizing the look and feel of your XBMC install is also a "thing", and yes, it is possible to very closely replicate the look and feel of Netflix to XBMC if that's what you want to do.
XBMC.org has a lot of discussion about software and hardware setups, although discussions of piratey sites on XBMC.org is verbotten. XBMChub is where that goes on.
The new Haswell based 4th Gen Intel NUCs are ideal for running XBMC as HTPC bare bones units as a media centre, as they have IR receivers built in to the unit. This allows you to add a refurb Logitech Harmony remote to your system without tearing your hair out to get it to work. (lot of returns on Harmony Remotes with people who find they can't set them up properly, so refurbs are cheap!) Many people have done this and Logitech saves all this crowd-sourced setup information on their site, so that setting up your Harmony remote for use with XBMC on a NUC is utterly painless.
You can skip that and just use an iPhone/iPad or Android tablet or phone to control XBMC via wireless network, too.
You can install Windows on your NUC if that's the way you want to roll (I have Win 7 x64 Home on mine), but for XBMC use, Open ELEC as your OS makes a LOT of sense and runs XBMC flawlessly. It does not take much in terms of RAM or mini SSD space, either. 4 gigs of ram and a 32gig mSATA SSD is all you need added on to an i3 based 4th Gen NUC. You can add the ram, SSD and wireless card (don't need one if you are going hardwire of course) to a NUC in about 2 minutes. Youtube the install vids. Nothing could be easier. Any 10 yr old can do it.
There is a Raspberry Pi based OpenElec install for that device which is the cheapest solution. It's slower than a NUC to navigate, but it gets you there and does the job for well under $100, all-in.