Any TV, as long as you don't connect it to wifi/ethernet. I've been using Roku throughout my house with a home DNS server set to block all roku analytics/log servers. No interface/app issues thus far (about a year now on 4 TVs)
edit: Also, aside from netflix, a local plex server with rtorrent/irssi to auto-download tv series I followl
edit: Also, aside from netflix, a local plex server with rtorrent/irssi to auto-download tv series I followl