It is quite remarkable what is available to watch these days via computer. Here are the two episodes of a classic Star Trek story The Menagerie about a weird race with a bizarre talent and freaky & vaguely suggestive heads. They inhabit the only planet in the galaxy which is forbidden under the death penalty to visit, the only death penalty left on the books. (in the lower right is an icon for full screen)
$this->bbcode_second_pass_quote('strider3700', 'I') wasn't aware scientists had determined time travel to be impossible. Hell I wasn't aware scientists had even really figured out what time is.
But I will agree with you and say time travel in a phone booth is very very unlikely today.