Complex sentence: The only available Rotom in "Pokémon Diamond" and "Pearl" resides in a possessed television in an old haunted château.You can only catch him after 8:00 PM but before 4:00 AM.
Split into simpler sentences: The only available Rotom in "Pokémon Diamond" and "Pearl" resides in a possessed television in an old haunted château. It's only possible to catch them after 8:00 PM but before 4:00 AM.