David has attended the TCA Press Tour twice:
At the 2005 Television Critics Association Summer Press Tour at the Beverly Hilton Hotel on July 14, 2005 in Beverly Hills, California to promote Blackpool with Sarah Parish and the writer of the series Peter Bowker.
At the 2009 Summer Television Critics Association Press Tour at the Ritz-Carlton Huntington Hotel on July 29, 2009 in Pasadena, California he appeared on the BBC America panel with Russell T. Davies, Julie Gardner, Euros Lyn and President of BBC Wordwide America Garth Ancier. He appeared again on day 5 of the tour, August 2nd on the PBS panel to promote Masterpiece Contemporary and Endgame with executive producer Rebecca Eaton, Chiwetel Ejiofor, Jonny Lee Miller, and Michael Young, mediator in the talks that ended apartheid in South Africa - portrayed by Jonny Lee Miller. David was on stage with Rebecca and then the others were on again with Rebecca.
You might not have any idea what the TCA is so here is some info from their website:
What is the TCA?
The Television Critics Association represents more than 220 journalists writing about television for print and online outlets in the United States and Canada.
What is TCA press tour?
The Television Critics Association exists to serve its membership of full-time TV critics, most of whom do not live near the entertainment capitals of Los Angeles and New York. The twice-yearly TCA press tour, then, represents an unparalleled opportunity to gain access to the people who make television. The reporting our members do at press tour creates story material year-round as well as valuable face-to-face contacts with network executives, producers and actors.