Self - Presenter (727 episodes, 1957-2021)
Self - Presenter / Self - Co-Presenter / Self - Reporter / Self / Self - Panelist (167 episodes, 2004-2024)
Self - Presenter / Self - Reporter / Self - Panelist / Self / Self - Co-Presenter / Self - Amateur Astronomer (130 episodes, 2009-2024)
Self - Presenter / Self - Panelist / Self (102 episodes, 2014-2024)
Self - Reporter / Self / Self - Co-Presenter / Self - Astronomical Imaging Expert (38 episodes, 2009-2019)
Self - Reporter / Self / Self - Co-Presenter (33 episodes, 2010-2020)
Self - Presenter / Self / Self - Co-Presenter (27 episodes, 2011-2021)
Self (16 episodes, 1975-2009)
Self / Self - Presenter / Guest / Self - Reporter (12 episodes, 2011-2020)
Guest / Patrick Moore / Self / Self - Reporter (12 episodes, 2007-2019)
Self - Presenter (9 episodes, 2015-2023)
Self (9 episodes, 1999-2021)
Self - Presenter / Self (6 episodes, 2015-2019)
Self / Self - Project Scientist, La Palma (6 episodes, 1982-1994)
Self (5 episodes, 1975-1978)
Self / Self - Presenter (6 episodes, 1976-2009)
Self (5 episodes, 1990-2019)
Self - Presenter (4 episodes, 2023-2024)
Self (4 episodes, 1975-1984)
Self (5 episodes, 1977-2009)
Self - Public Astronomer / Self - Royal Observatory Greenwich (3 episodes, 2014-2016)
Self (4 episodes, 1963-2021)
Self (3 episodes, 1979-1987)
Self / Self - Panelist / Self - Planetary Scientist (3 episodes, 2015-2021)
Self / Self - Panelist (3 episodes, 2018-2020)
Self (3 episodes, 1957-1959)
Self / Self - Director, Anglo Australian Observatory (3 episodes, 1977-1982)
Self (3 episodes, 1981-1992)
Self (3 episodes, 1981-1987)
Self / Self - Panelist (3 episodes, 2014-2023)
Self - Meteorite Expert / Self - Presenter (2 episodes, 2018-2019)
Self (2 episodes, 2011-2023)
Self - Presenter (2 episodes, 2014-2016)
Self / Self - Presenter (2 episodes, 2017-2020)
Self (2 episodes, 1969-1970)
Self (3 episodes, 1974-2021)
Guest / Self (3 episodes, 1975-2015)
Self (2 episodes, 2002-2016)
Self / Self - Presenter (2 episodes, 2017-2019)
Self (2 episodes, 1957-1958)
Self (2 episodes, 1958-1959)
Self (2 episodes, 1959-2013)
Self (2 episodes, 1959-1961)
Self (2 episodes, 1971-1977)
Self (2 episodes, 1973-2004)
Self (2 episodes, 1976-1978)
Self / Self - Presenter (2 episodes, 1976-1977)
Self (2 episodes, 1977-1979)
Self (2 episodes, 1978-1984)
Self (2 episodes, 1978-1982)
Self (2 episodes, 1982-2007)
Self / Self - Director, Royal Greenwich Observatory (2 episodes, 1982-1988)
Self / Self - Anglo Australian Observatory (2 episodes, 1982)
Self (2 episodes, 1991)
Self / Self - President of METI International (2 episodes, 2022-2023)
Self (1 episode, 1963)
Self (1 episode, 2007)
Self - Presenter (1 episode, 2018)
Self - Presenter (1 episode, 2014)
(1 episode, 2014)
Self - Presenter (1 episode, 2015)
Self - Presenter (1 episode, 2017)
Self (1 episode, 2017)
Self - Panelist (1 episode, 2022)
Self (1 episode, 2011)
Self - Panelist (1 episode, 2019)
Self - Panelist (1 episode, 2021)
Self (1 episode, 2023)
(1 episode, 2011)
Self (1 episode, 1957)
Self (1 episode, 1958)
Self (1 episode, 1959)
(1 episode, 1959)
Self (1 episode, 1964)
Self (1 episode, 1969)
Self (1 episode, 1973)
Self (1 episode, 1977)
Self (1 episode, 1978)
Self (1 episode, 1979)
Self (1 episode, 1981)
Self - Director, Parkes Radio Astronomy Observatory (1 episode, 1982)
Self - Director, Mullard Radio Astronomy Observatory (1 episode, 1982)
Self - Parkes Radio Astronomy Observatory (1 episode, 1982)
Self - Jodrell Bank (1 episode, 1982)
Self - Astronomer Royal for Scotland (1 episode, 1982)
Self - Mauna Kea Observatory (1 episode, 1982)
Self - Brookhaven National Observatory (1 episode, 1982)
Self - Lowell Observatory (1 episode, 1982)
Self - Commander, Apollo 17 (1 episode, 1982)
Self - UKIRT Telescope (1 episode, 1982)
Self (1 episode, 1982)
Self (1 episode, 1986)
Self (1 episode, 1987)
Self (1 episode, 1988)
Self (1 episode, 1990)
Self (1 episode, 1991)
Self (1 episode, 1992)
Self (1 episode, 1995)
Self (1 episode, 1996)
Self (1 episode, 1997)
Self (1 episode, 2002)
Self (1 episode, 2003)
Self - Physicist, Imperial College London (1 episode, 2004)
Observer (1 episode, 2005)
Self (1 episode, 2009)
Self - Director of Projects The Planetary Society (1 episode, 2009)
Self - Amateur Astronomer (1 episode, 2009)
Self - Caltech Adaptive Optics Expert (1 episode, 2009)
Self - Airbus Defence and Space (1 episode, 2014)
Self - University of Hertfordshire (1 episode, 2014)
Self - University of Oxford (1 episode, 2014)
Self - University of Portsmouth (1 episode, 2014)
Self - University of Minnesota (1 episode, 2014)
Self (1 episode, 2014)
Self - Natural History Museum (1 episode, 2014)
Self - Mission Operations Manager (1 episode, 2015)
Self - Geology Lead Investigator (1 episode, 2015)
Self - Deputy Geology Lead (1 episode, 2015)
Self (1 episode, 2015)
Self - Atmospheric Chemist (1 episode, 2015)
Self - Principal Investigator (1 episode, 2015)
Self - Astrophysicist (1 episode, 2018)
Self - Radio Astronomer (1 episode, 2018)
Self - Astronomer (1 episode, 2018)
Self - Physicist (1 episode, 2018)
Self (3 episodes, 2019-2021)
(1 episode, 2019)
Self (1 episode, 2019)
Self - University College London (1 episode, 2019)
Self - The University of Manchester (1 episode, 2023)