Question: Lily's Driftwood Bay premiered on what British television channel that is operated by a joint venture between Viacom INternational Media Networks Europe and Sky plc?

Context paragraphs:
Lily's Driftwood Bay: Lily's Driftwood Bay is a Northern Irish 2D animated mixed-media television series for children.  Produced in Northern Ireland, the series premiered on Nick Jr. in the UK and Ireland on 5 May 2014.  It is created and produced by Sixteen South and Ingenious Media, based on an original idea and characters by Joanne Carmichael.

Viacom International Media Networks Europe: Viacom International Media Networks Europe (previously MTV Networks Europe) is a subsidiary of Viacom.  The unit is no longer used, Viacom International Media Networks is now working in five operating units.

VH1 Classic Europe: VH1 Classic Europe, also known as "VH1 Classic European", is a music television channel from Viacom International Media Networks Europe.  The channel primarily features music videos from the 1980s through to the 2000s (decade), although rare live performances from the 1950s, 1960s and 1970s can be seen as well.  VH1 Classic was first launched in the United Kingdom on July 1, 1999 and made available from the beginning to the whole of Europe.  However, the current pan-European service was launched in November 30, 2004, when it became a separate feed from VH1 Classic UK.  Like VH1 Europe, it broadcast from MTV Networks Europe's premises in Camden Town (London, UK).  It is officially available to viewers all over Europe (except the UK & Ireland and Italy and San Marino).  Unlike VH1 Classic UK, the pan-European version of the channel is entirely devoid of advertisements, with round-the-clock music videos played out from MTV Networks Europe's comprehensive library in London.

MTV France: MTV France is a 24-hour entertainment channel operated by Viacom International Media Networks Europe.  The channel was launched as MTV Networks Europe began to further localize its brand throughout Europe.  MTV France (previously MTVF) was launched on June 20, 2000 in France.  The channel serves the French-speaking world including Belgium (French-speaking areas), Switzerland (French-speaking areas), Monaco and Africa (French-speaking areas), Morocco on cable.  Though, it is not available in Québec.

MTV Live HD: MTV Live HD is an international 24-hour HD music and entertainment television network that is operated by Viacom International Media Networks' subsidiary Viacom International Media Networks (Europe).  The channel is available in Europe, South America, Oceania, Middle East and North Africa and Asia.

Nickelodeon (UK and Ireland): Nickelodeon is a television channel that is dedicated to kids' programming.  In the UK and Ireland, it is operated under a joint venture between Viacom International Media Networks Europe and Sky plc.

Nick Jr. (UK and Ireland): Nick Jr. is a British television channel in the United Kingdom and Ireland operated by a joint venture between Viacom International Media Networks Europe and Sky plc.  The channel is aimed at pre-school children.

VH1 Europe: VH1 Europe, also known as "VH1 European", is a music television channel from Viacom International Media Networks Europe, based on the American Channel of the same name.  This version of VH1 is very different from its American counterpart, since it has never ceased to be a proper music channel, playing a wide variety of music programs on a daily or weekly basis.  VH1 Europe was in 2013 the only major music channel in Western Europe still broadcasting in the 4:3 ratio while others broadcast in 16:9 widescreen.  Since May 2014, VH1 Europe now is broadcasting in 16:9 widescreen.

Comedy Central Sweden: Comedy Central (Swedish: "Comedy Central Sverige" ) in Sweden is a television channel owned by Viacom International Media Networks Europe, broadcasting to Sweden.  Viacom International Media Networks have said that the channel will feature both original Swedish productions made for the channel and imported content.

5 USA: 5 USA is a British multi-platform entertainment television channel.  It is owned by Viacom International Media Networks Europe and is a sister channel of Channel 5 and 5Star.  It was launched on 16 October 2006 as Five US and was the second digital channel in the UK to be launched by RTL Group (the owner at the time) as part of their multi-channel strategy, the first being Five Life (now 5Star).  5 USA concentrates on showing imported movies and programmes from the United States.  The channel's original broadcast hours were from 16:00 to 01:00, however it extended its hours starting at 12:00 in June 2007.  On 1 November 2015, the channel extended its hours again and began broadcasting from 07:00 until 03:00.  The channel changes its programme slots and shows from time to time.  5 USA is available on Sky, Virgin Media, Freesat, Freeview and IPTV.

Supporting paragraphs: Lily's Driftwood Bay Nick Jr. (UK and Ireland)
Answer: Nick Jr.