Britain's Greatest Obsessions

Wildlife expert and presenter Chris Packham is a self-confessed dog obsessive, doting on his two poodles, Sid, and Nancy. But he wants to know more about when animals stopped being useful to humans and started to become companion animals. When did animals first become our "best friends", and which kind of pets do Brits prefer?

Meeting experts and fellow animal-lovers, Chris' investigation takes him into all sorts of weird and wonderful places – from a cave where he meets an expert on witches and familiars, a pet psychic Jackie Weaver and a real-life pet detective Lisa Dean, to a rescue centre for exotic pets and reptiles in particular, where Chris is reminded of his younger self by the centre's enthusiastic owner. Along the way, Chris talks through his pet obsession with Harry, Reginald, Liza, Lorraine, and Suggs.

Journalist and presenter Lorraine Kelly never got to hear about her grandfather's war – it was only after he died that she found out more about it from friends and family. As an honorary colonel in the cadets, Lorraine felt she needed to find out more and to separate the facts of WWII from the enduring fiction and find out why, after 80 years since VE Day, Brits continue to be so obsessed by it.

In this episode, Lorraine meets experts who tell her true stories of reluctant spies and breathtaking bravery; the importance of women's roles in the war; and the reality of being an evacuee. On this fascinating journey, Lorraine visits the Dad's Amy Museum to find out more about the legendary Home Guard and learns about the problem with creating a heroes vs villain narrative, bringing her fascinating findings back to base to chew the fat with Harry, Reginald, Liza, Chris and Suggs.

US comedian Reginald D Hunter takes a thought-provoking and sometimes moving trip through history, exploring the origins of the class system in Britain and why, even now, it continues to infuse all sorts of areas of British life. As an American who has lived in Britain for the past 25 years, Reginald is uniquely placed to understand the nuances surrounding class in Britain and to be able to compare them to some of the enduring challenges in America of race and discrimination.

Meeting experts including comedy "national treasure" Alexei Sayle, Reginald broaches everything from capitalism to suffragettes, and from regional accents to afternoon tea. Etiquette expert William Hanson reveals how the way you hold your teacup, and your cutlery can be telltale giveaways to your class and "breeding". Reginald examines our attitudes to working class heroes with author and Spurs fan David Goldblatt, who imparts the homespun wisdom of the football terraces, before wending his way back to discuss his findings with Harry, Chris, Lorraine, Liza, and Suggs.

Liza Tarbuck has long been fascinated by the weather and why we all talk about it quite so much. Is it merely a pleasant way to pass the time, or is it now much more important than that? Now we all have weather apps are we self-proclaimed experts or do we in fact understand much less than before? And just how important was the weather to the success of British naval history, explorations, and war?

From applying sun cream to a pig on an inner-city farm, to recreating the experiments of pioneering scientist, Nikola Tesla, Liza's journey of discovery takes her from the hallowed halls of the Greenwich maritime museum to a deserted forest and a session of spiritual enlightenment with an earth mother. Chatting to experts ranging from drumming weatherman Owain Wyn Evans to Met Office meteorologists and maritime history curators, Liza delves into this very British obsession and returns to discuss it further with Harry, Chris, Reginal, Lorraine and Suggs.