I can keep you grounded, or I can rile you up.
I can facilitate your travel, or I can discourage you from going.
I have assumed many forms including that of a cyborg, a professor, and a statue.
What am I?
As long as people desire entertainment, my forms are seemingly endless.
Two of my other notable forms are a schizophrenic mind, and a sled.
The forms I have explicitly mentioned are, essentially, intangible. Some of the clues in the main body of puzzle point toward tangible items.
The wordplay here is playing with multiple definitions. The “forms” apply to only one of these definitions.