Omnicom Media Group is expected to be feeling the pressure this week after its decision to pull all clients from Channel 5's reality TV show "Celebrity Big Brother," which launched to strong audiences of more than 3 million viewers. Outside of the linear broadcast, the launch of "Celebrity Big Brother" was also the most tweeted-about show on TV, generating 419,000 tweets. Also for the first time, an edited version of "Celebrity Big Brother" daily highlights show is being repeated on MTV the following day throughout the series.

"The Times" finished 2014 by being the best-performing national newspaper in terms of year-on-year circulation change for seventh month in a row. The News UK title's circulation averaged at 390,765 for the month, up 1.64 percent year-on-year. The "Sunday Times" was the next-best-performing title, recording a circulation of 787,256, down 3.11 percent year-on-year.

HSBC is using the relaunch of its Advance current account to push a new social strategy that will see the high street bank shift from a reactive to a proactive approach to social media. The bank launched a social hub on Friday that will show its first pieces of long-form digital content. Created with agency JWT, the films feature six true stories of people who have achieved their ambitions through the help of friends and family, offering them a chance to say thank you.

Chinese company TCL Communication has acquired the trademarks for legacy mobile brand Palm, and announced plans to revive the company as a U.S.-based subsidiary. TCL already operates the Alcatel OneTouch brand, selling affordable smartphones, tablets and wearables running on Android. Now it plans to sell Palm-branded smartphones, although it is not clear what the new devices will look like, how much they will cost or when they might launch.

The National Union of Journalists (NUJ) has requested that Richard Desmond sell off his four UK newspapers. The journalism union urged Northern and Shell to part ways with subsidiary Express Newspapers, the company responsible for publishing UK national newspapers the "Daily Express," the "Sunday Express," the "Daily Star" and the "Daily Star Sunday." The move came in response to the company slashing 30 percent of its workforce as part of a GBP14m cost-cutting scheme according to the NUJ.

Apple's App Store saw record profits in the first week of January after half a billion dollars were spent on apps and in-app purchases on New Year's Day. The firm, which takes a 30 percent slice of all sales through its store, earned $5bn from its apps globally in 2014 -- an increase of 50 percent upon 2013. In April, it emerged that the App Store generates 85 percent more revenue than rival Google Play despite the Android platform seeing more downloads worldwide.

TalkTalk is set to drop the Blinkbox brand, after agreeing to acquire the on-demand movie service from Tesco. The broadband provider plans to roll Blinkbox into its existing pay TV service, and will use the service to launch a TV app. That means TalkTalk's 1.2m pay TV subscribers could watch shows across smartphones, tablets and games consoles, and start watching shows on one device before finishing on another.

E.ON, the energy provider, is taking advantage of a scheduled review to consolidate its advertising and CRM accounts in the UK. The company wants an integrated agency that can handle all of its above-the-line and direct advertising in the UK and is working with ISBA on the pitch. RFIs have been sent to agencies. Once the shortlist is finalised, E.ON will hold a knockout chemistry round, with successful shops invited to a Q&A session. Briefings are scheduled for February and a result is expected in May.

The social network announced Wednesday that the amount of video produced by brands in its News Feed has gone up by 3.6x year-on-year. In December, the social network turned heads when it showed that it had reached more views on its platform with the John Lewis Christmas ad campaign than YouTube. Facebook's platform could prove to be a strong competitor for YouTube, which has so far been the dominant online video site, drawing in huge investment by advertisers.

Three-quarters of marketing strategies and ad campaigns underperformed last year because marketers focused on "how to say it" over "what to say" and applied "fluffy" engagement KPIs and misused data, according to Fournaise Marketing Group. The study showed that marketers failed to ensure strategies were answering the needs and wants of their target consumers, and instead focused on the look and feel of their strategies as well as digital and social aspects.