A Revolution in Evolution (part 3), extra-terrestrial seeding?

So far I have been critical of Darwin's theory of evolution from the perspectives of, firstly, the need for intelligent design and secondly its inconsistency with regard to innovation in engineering terms. It is now time to provide an alternative hypothesis for how life on earth came about, in all its diversity. Could life be endemic to the universe as a whole? If so, are planets terra-formed as a matter of course? In this episode we look into the evidence for this from ancient, historical records, interpreting what this may indeed mean in terms we understand today.