Mr Mandela is often referred to as âKhuluâ, which means great, paramount, grand. The speaker means âGreat Oneâ when referring to Mr Mandela in this way. It is also a shortened form of the isiXhosa word âTat'omkhuluâ for âgrandfatherâ.
I assume 'Pico' is a name. Boku refers to oneself (like 'watashi', 'ore', 'washi', etc.) like 'I' and 'no' indicates possession (for example, 'boku no inu' would be 'my dog' or 'dog of mine' (in reverse order since dog appears at the end in the Japanese sentence) since 'inu' is dog in Japanese).
Roku is a small device that streams movies, TV shows, music, and other entertainment to your TV via the Internet. Since Roku streams (rather than downloads) video, it provides instant access to a huge library of entertainment without having to use a computer or store files locally on a hard drive.