Nickelodeon is an American basic cable and satellite television network owned by the MTV Networks Kids & Family Group, a unit of the Viacom Media Networks division of Viacom, which focuses on programs aimed at children and teenagers; it has since expanded to include three spin-off digital cable and satellite networks in the United States, and international channels in six continents.

Can we draw the following conclusion?
Nickelodeon and MTV are part of the same company.
Yes