Writing: A ghost story

My parents bought an apartment in Barcelona and, one day, I saw two ghosts!
I was in my living room when I saw them. First, I saw grandfather .She was watching a TV. Then I saw a grandmother. She was sitting on the armchair. They were very horrible, so it wasn’t dangerous.
I watched TV, but they didn’t look at me. After that, they to crossed the TV and disappeared and I didn’t see them again.
The next day, I watched the story on the TV.
Many years ago, a family lived in our apartment.
The parents died and their uncle stayed in the apartment with her aunt.