BBC1 Brain globe!
Broadcast
29th December 1984
We'd now expect to still be seeing a Christmas ident in the final few days of December, but not back in 1984. However, the BBC1 mirror globe did take on an unusual form to present a special edition of Tomorrow's World on 29 December 1984, focussing on optical illusions.
![image from: BBC1 Brain globe!](https://tvark.org/media/1998i/2018-02-08/ce22b74f97db41a318a2e812af7f34ada0edb8cd.jpg)
![image from: BBC1 Brain globe!](https://tvark.org/media/1998i/2018-02-08/e059921a5b9ceef557bf68bbcefdcf3148f2108c.jpg)
![image from: BBC1 Brain globe!](https://tvark.org/media/1998i/2018-02-08/479b9942c224decd2f4a2315a2d4b9bbd27c5777.jpg)
![image from: BBC1 Brain globe!](https://tvark.org/media/1998i/2018-02-08/8de6abc92386aec321fd9ba821254b42fd01149f.jpg)
![image from: BBC1 Brain globe!](https://tvark.org/media/1998i/2018-02-08/64b9f53051ee476276ddaa11d6f72f963c7f9504.jpg)
![image from: BBC1 Brain globe!](https://tvark.org/media/1998i/2018-02-08/00951f1debbf6b749cc65c88aaa0c3826ce28279.jpg)