O2 (UK) Telefónica O2 had a long-standing relationship with Arsenal F.C., being their shirt sponsor until the end of the 2005/2006 season. In 2005, a three-year deal was signed that saw Telefónica O2 become the team's exclusive mobile communications partner. O2 were the main sponsor of the Channel 4 reality TV show "Big Brother" from its second series (as BT Cellnet) in 2001 until its fourth series in 2003. They also sponsored the spin-off shows "Celebrity Big Brother 2" in 2002 and "" in 2003. In total O2 sponsored five series of the show. O2 sponsored music festivals, the Wireless Festivals, from
University of Electro-Communications common with that of school name which is "to establish an university which is open to all over Japan, by call it by a name without any geographical name". The "Times Higher Education World University Rankings" 2018 ranks UEC in the bracket of the 801-1000 best universities in the world. University of Electro-Communications The is a national university in the city of Chōfu, Tokyo, Japan. It specialises in the disciplines of computer science, the physical sciences, engineering and technology. It was founded in 1918 as the Technical Institute for Wireless-Communications. The University of Electro-communications was founded in the Azabu district,