There is abundant evidence that pedophile rings are prevalent among the elite of British politics in both parties and have been for decades. The recent Jimmy Savile scandal is just the tip of the iceberg; the problem stretches far beyond Savile and the evidence is now so preponderant it is undeniable.
UK and Savile 
Savile Timeline 
wiki: Jimmy Savile Abuse Scandal 
- 11Oct2012 - Jimmy Savile is the Tip of the Iceberg (this is a blog but it contains solid citations, it explains how Savile was far more than a lone predator) 
- 11Oct2012  - Jimmy Savile: nurse's Broadmoor claim adds to 'cascade' of abuse allegations - Psychiatric nurse says former patient told her she had been repeatedly raped by TV star in early 1980s
- 15Oct2012  - Jimmy Savile police investigate Broadmoor rape claims - As sexual abuse claims grow, Met studies claims that late DJ assaulted patients at psychiatric hospital where he volunteered
- 15Oct2012  - Did Jimmy Savile Sexually Abuse Corpses at Stoke Mandeville?
- 25Oct2012  - PAEDO RING LINKED TO NO10 - A JIMMY Savile paedophile ring might once have had links to No10 Downing Street, an MP claimed yesterday.
- 2013 - Police Protection of Celebrity Criminals Prevented Savile Being Brought to Justice 
- 11Jan2013  - Police errors left Jimmy Savile free to 'groom the nation' - Public prosecutor promises to reinvestigate thousands of sexual assault cases after extent of Savile's crimes revealed
- 30May2013 - New Allegations: Other Members of BBC in the Wake of the Savile Accusations 
- 28July2013 - Celebrity arrests could soar after horrified police discover Jimmy Savile's secret lair at record shop  
- 18Jan2014 - Revealed: how Jimmy Savile abused up to 1,000 victims on BBC premises 
- 4May2014  - SAME AS PAEDO SAVILE: Top cop compares disgraced Max Clifford to evil child abuser - DISGRACED publicist Max Clifford is "incredibly similar" to perverted paedophile Jimmy Savile, according to an ex-cop involved in bringing them to justice
- 4Sept2014  - Jimmy Savile scandal: Sexual predator ran girls-only parties at Broadmoor hospital away from staff - He used his unlimited access on the wards to recruit the young women for his private parties where he installed himself as DJ
Relationship to #Pizzagate
Connection to Prince Andrew
From Daily Mail article, How Savile seduced the royals: As it's claimed he nearly became godfather to Harry, how the predatory DJ wormed his way into the very heart of Palace life, by Richard Kay, June 12th, 2015:
But Savile did not confine himself to one royal. Prince Andrew was called on to help in an episode of Jim’ll Fix It when an eight-year-old girl asked to visit a warship. The Naval officer Prince was her host on his minehunter, HMS Cottesmore. Princess Anne was similarly obliging on another episode of the Saturday night programme, while Prince Philip was leant on to help a fundraising drive for the National Spinal Injuries Centre at Stoke Mandeville hospital in Buckinghamshire.