on the old chateau in eterna forest.You need to use the hidden move cut *it needs to be
night if you want to catch rotom. go to a room where theres a TV click it and rotom will
leap out of the TV then you will catch it. :)

Go to Eterna during the night,enter the old chateau(cut needed)go to the room with the tv
in it press a it should say if you wanna thump it say yes and rotom will come out.......

b4 u tap on the tv u have 2 find 2 ghost. u have 2 find a little girl and i believe a
grandmother. if not a grandmother its a butler