Yellow Label) is not marketed in the UK, as owner Ekaterra sells PG Tips tea there. Lipton Ice Tea and fruit teas are available in the UK. Due to the Russian invasion of Ukraine, Ekaterra decided in August of the same year to completely withdraw from the Russian market and stop the production and sale of Lipton tea. Marketing and advertising In 1914, Lipton's tea were one of the sponsors for the first flight from Melbourne to Sydney by French aviator Maurice Guillaux, at the time the longest air mail and air freight flight in the world. Sponsor Lipton printed 250,000 copies of a letter Guillaux wrote saying "I found it the most delicious tea I have ever tasted....I found it very soothing to the nerves", and these could be had by sending Lipton a one-penny stamp. For a threepenny stamp, Lipton would send out a quarter-pound pack of tea. In an attempt to change the negative perception of Lipton Ice Tea in the United Kingdom – as 60% claimed they did not like the taste before even trying it – Lipton carried out a London-based summer marketing campaign in 2010 under the slogan "Don't knock it 'til you’ve tried it!"; roaming demonstrators handed out 498,968 samples over the 58-day run. After the campaign, 87% of consumers claimed to enjoy Lipton Ice Tea, while 73% said they were more likely to purchase in the future. A similar campaign, with slogan "Let's Go!", was carried out in summer 2017. Lipton also made commercials starring The Muppets for the 2014 Disney film Muppets Most Wanted. Product quality controversy In November 2011, the General Administration of Quality Supervision, Inspection and Quarantine of China found high levels of pesticides such as bifenthrin in one variety of Lipton tea. Unilever responded by clearing the shelves of all affected products. In April 2012, Greenpeace raised further questions about Lipton products in China, after two varieties of Lipton tea the group purchased in Beijing supermarkets failed safety tests, with the results allegedly failing to meet the regulations enforced in the European Union. The group also stated, "Some of the detected pesticides are also banned for use in tea production by the Chinese Ministry of Agriculture." Unilever China denied the findings, stating all Lipton products within the country were safe. Lipton's Seat Lipton's Seat is a high observation point in the hills of Poonagala, Bandarawela, Sri Lanka, near