Possible paranormal activity?

One week ago I was laying in bed when I heard a noise that to me, sounded like huffs of breath. At first, I thought it was my breath but I sat up to look and when I did, I heard an almost pig grunt kind of sound. I got scared and slept in the computer room which is directly above my room. Last night, I was on the computer, which is EXACTLY above the corner where I heard the pig noise, a noise like thunder cracked from a window at my left ear to a window towards my front right side. It was not storming and there was no lightning. I checked the screens on the windows because I thought that they might have fallen out but they were just fine. I ran into the kitchen and when i did, the tv was on that weird color line thing and was making an annoying high pitched sound. I asked my aunt when the tv quit working and she said it was right that second. I stepped outside and the cats and coyotes were both howling and growling. I waited a minute and turned the tv back on and everything was fine after that. It could not have been anything with the satellite because it is on the opposite side of the house. After last night, I feel like it may be paranormal.