Here are 5 walking tours in London which have a TV series as a theme.

Call The Midwife: Walk starts All Saints DLR station, finishes Limehouse

Downton Abbey, The Reality: Walk starts Victoria Station, finishes Trafalgar Square

Mr Selfridge: Walk starts Bond Street finishes Trafalgar Square

Ripper Street & Whitechapel TV Series: Walk starts Tower Gateway DLR station, finishes Shoreditch High Street or Whitechapel TV series cafe
Sherlock: Walk starts Farringdon station, finishes Sherlock Holmes pub or Charing Cross