Was Life in Cold Blood broadcast in the same country that Black Tar Heroin was filmed in? 
Black Tar Heroin (film):  Filmed from 1995 to 1998 in the Tenderloin, San Francisco, California, the documentary describes the lives of heroin addicts. Life in Cold Blood: Life in Cold Blood is a BBC nature documentary series written and presented by David Attenborough, first broadcast in the United Kingdom from 4 February 2008 on BBC One.
no