national news start at 18:30, clock disappears up until the end of its morning program, B92 from 2004 to 2011, Avala from 2007 until 2011) in Serbia along with station logo also show a digital clock below the logo. Singapore Singaporean television channels began showing the channel logos during television programs in 1994. The first one was Channel 5, then Channel 12 and lastly Channel 8. The television stations show the logo in full-color, and are usually shown in the top right of the screen. Also, since around 2004, logos of Mediacorp television channels also include the parent company's logo, and this expanded in 2005, with Channel U became a part of Mediacorp. Mediacorp, the sole free-to-air broadcaster of Singapore and effectively the state broadcaster, shows its on-screen logos in two parts: a transparent Mediacorp wordmark appears immediately above the channel logo in full colour. The channel logos are almost always in the top right, with the exception of Channel NewsAsia, which uses the bottom left. Even with Channel NewsAsia, the Mediacorp wordmark remains at the top right corner. Like its neighbouring country, Malaysia, Singaporean channels remove the channel logos during commercial breaks except for Channel NewsAsia, whose DOG is integrated into the ticker which remains on the screen during breaks. Slovakia Much like the Czech Republic, TV channels in Slovakia always place their logos in the top left corner of the screen, irrespective of the broadcasting network. The flagship public channel, STV1 (now Jednotka), using the top left ever since 1993 with exception for 2000–2001 and between 2004 and 2012 which used top right corner. The main commercial TV channels, such as TV JOJ and Markíza and their sister channels, have always used the top left corner. The news TV channel TA3 has used the bottom left corner between 2011 and 2017. This is also the case for Czech-language channels that broadcast in Slovakia. Since 2004, almost all commercial television stations in Slovakia keep their logos on the screen and RTVS, the country's public broadcasting network, does the opposite during advertisements and programme trailers. South Korea South Korean national broadcaster Korean Broadcasting System (KBS) introduced DOGs for all programmes in 2001, followed by Munhwa Broadcasting Corporation (MBC) and Seoul Broadcasting System (SBS) a year later. However, the usage of DOGs dated back to 1986 but only for news programming. Some cable TV channels started using DOGs earlier than these