John Gifford is known for his work on The Truth Behind (2006), What on Earth? (2015) and The Truth Behind: Atlantis (2011).
What on Earth? - Season 8
What on Earth? - Season 9
What on Earth? - Season 4
What on Earth? - Season 7
What on Earth? - Season 11
What on Earth? - Season 12
What on Earth? - Season 2
What on Earth? - Season 6
What on Earth? - Season 3
What on Earth? - Season 5
What on Earth? - Season 1
What on Earth? - Season 10