Doctor Who (2013 specials) Doctor Who (2013 specials) The 2013 specials of the British science fiction television programme "Doctor Who" are two additional episodes following the programme's seventh series. In addition to the traditional Christmas episode, which has been a feature of the revived series since 2005, there was also a special celebrating the 50th anniversary of the programme. Both episodes starred Matt Smith as the Eleventh Doctor and Jenna Coleman as Clara Oswald. The 50th anniversary special, "The Day of the Doctor" saw the guest returns of former series leads David Tennant and Billie Piper. The 2013 Christmas special, "The Time of the
All or none All or none All or none (AON) is a finance term used in investment banking or securities transactions that refers to "an order to buy or sell a stock that must be executed in its entirety, or not executed at all". Partial execution is not acceptable; the order will execute "only if there are enough shares available in a single transaction to cover it". An all-or-none clause in an underwriting contract or investment prospectus gives a securities issuer the right to cancel an issue in its entirety if the underwriting is not fully subscribed. AON orders are similar to fill