 A comic strip featuring the characters of Lady Penelope and Parker debuted in the early issues of APF Publishing 's children 's title TV Century 21 in 1965 . A full @-@ length Thunderbirds strip appeared a year later , at which point the Lady Penelope adventures were given their own comic . Thunderbirds , Lady Penelope and Captain Scarlet and Thunderbirds annuals were published in the late 1960s ; during the same period , eight original novels were written . In 2008 , FTL Publications of Minnesota launched a new series of tie @-@ in novels . 
 A comic strip featuring the characters of Lady Penelope and Parker debuted in the early issues of APF Publishing <a href='null_genetive' title='1'><mark>'s</mark></a>children <a href='null_genetive' title='2'><mark>'s</mark></a>title TV Century 21 in 1965 . A full @-@ length Thunderbirds strip appeared a year later , at which point the Lady Penelope adventures <a href='uninflect' title='3'><mark>were</mark></a> given their own comic . Thunderbirds , Lady Penelope and Captain Scarlet and Thunderbirds annuals <a href='uninflect' title='4'><mark>were</mark></a> published in the late 1960s ; during the same period , eight original novels <a href='uninflect' title='5'><mark>were</mark></a> written . In 2008 , FTL Publications of Minnesota launched a new series of tie @-@ in novels . 
A comic strip featuring da characters of Lady Penelope and Parker debuted in the early issues of APF Publishing  children  title TV Century 21 in 1965 . A full @-@ length Thunderbirds strip appeared a year later , at which point the Lady Penelope adventures was given their own comic . Thunderbirds , Lady Penelope and Captain Scarlet and Thunderbirds annuals was published in the late 1960s ; during the same period , eight original novels was written . In 2008 , FTL Publications of Minnesota launched a new series of tie @-@ in novels .