How to build a time machine - BBC2 now...

Yea I watched that about 10 years ago.

I watched it 10 Million years ago !

if i had a time machine i would go back and turn over, an hour wasted ...

If you want to go back 50 years you don't need a time machine - just sign in to Chit Chat.

If you wish to go back over 1000 years I can recommend a book to read .................

Surely we can debunk the notion of the possibility of travelling back in time on the basis that no one has come back from the future?

"What do we want"

"A time machine"

"When do we want it?"