How Can I Get Rotom In Pokemon Platinum?

You have to go to the mansion west from Eterna city and then you go to the TV on the 2nd floor,press a on the TV and you'll get in a fight with Rotom (only through 8pm to 4am)

Well First Go To Enterna Forest You Will See Gardenia There You Will Need The HM Cut Go Into It.You Will Actually Get Freaked Out There Will Be Ghost People. Go Into The Room That Has a TV Click On The TV It Will Say A Pokemon Appears To Come Out The Screen And It Will Ask You Thum The TV? You Say Yes You Will Hear ROTOMS Cry and Then You Battle ROTOM

Rotom can be seen in the old chateau only at night where there is a TV on.
To capture it at pokemon pearl or diamond you have to beat the pokemon league.
And in pokemon platinum you can capture it after you can use the move cut.

Go to the haunted building in the eterna forest at night once you do go to the tv and press A and the tv will say its glaring and read it until you and up battling eterna

You go to Eerna forest but go to the exit and go in. There is a house go in it. But go to the house between 8:00p.m. To 4:00 a.m.FYI I would buy 5 dusk ball, its works 100%.

Well there are forms of rotom and note to self rotom can be breeded to.
All you need is a ditto because ditto can breed with any thing but most leagedarys.
On the floor there will be five items and they each have a different form of rotom.

You can get a Rotom at the Old Chateau. Make sure it's nighttime before going. Also, Rotom's in the room with the TV.

Go into the old chateau, then go to the top floor, go to the door before the last to the left, and then click on tv.

In the scariest place ever...

     ...  

OLD CHATEAU! (DUN DUN DUUUUUUUUUUUNNNNNNN!)

ps don't let the ghosts in there kill you bring a max repel keeps pokemon and murderous ghosts away!

You can get it in Eterna Forest in the Old Chateau. Once you get it, you can change its form, too. How? First, go to Jublife City. Go into the TV building. Search ALL the floors, talking to everyone. You will meet a reporter. When interviewed, type in the words "POKEMON" "HAPPY". (I think so.....) You will get a mystery gift SECRET KEY. To claim this item, you will need Nintendo Wi-Fi Connection. (Works well on the Nintendo Wii. If you use a Wii, I don't remember HOW to get it there, but you can try different connections. This may take a while...) Once you obtain the key, go to ANY Pokemart. A delivery boy will be next to the counter. Talk to him. He will give you your key. This MAY sound strange, but I'm 100% it will work: Fly to Eterna City. Have Rotom in your party. Go inside the Galactic Building and in the 1st floor, top left corner, you will see a green bookshelf and a machine. Next to the machine is a wall, with nothing in front of it. Click on the wall. A door appears! Go inside. You will see a Microwave oven, a fan, a washer, a lawn mower, and a refrigerator. Before you click on one, to the right is a table. On it is a book. Read it VERY carefully. It teaches you about Rotom changing forms. NOW choose one. You can come back and change Rotom anytime you want. You can also put it back in its regular form. Have fun with your Rotom! Catch Em' All!

Depending on which game you have (HeartGold, SoulSilver, Diamond, Pearl, or Platinum). For Diamond, Pearl, and Platinum, Go to the Jublife TV Station and go to the top floor. Talk to the man standing next to the woman and tell him this "Everyone Happy" and "Wi-fi Connection" and he will be impressed cause you knew that phrase and he will get you the mystery gift. Open it to get the mystery key. But on those three, the key can only be used once. HeartGold and SoulSilver, take Rotom to Silph CO. And take him to the elevator. The Guard says not to go in there but go into the elevator anyway. Rotom will use it's power to use the elevator and takes you to a strange room. Then you will see, a fan, microwave, lawnmower, Fridge, and washer. Let Rotom go into whatever one you picked. And you can always come back to change it!

In order to  get rotom you must  go in enterna forest and the old Chatou will be in their, and you must go up stairs and go in to one of the rooms with the tv. And as soon you touch it it will say do you what to tap the glass say yes and thier is rotom

Go to old gateau at night and look at all TVs

Between 8 and 4 in run down Manson at T.V

You see him when you finish the pokemon league including cynthia

What if I go to the TV and he doesn't come out, but it's between 8:00 p.m. And 4:00 a.m.?

Go to the old Chateau, thump the tv and a level 20 rotom will come out