instance, kabel eins uses a bright orange coloured logo.) TV channels generally may show their logos at the top left or top right of the screen, depending on the network. Public broadcaster ARD’s national channels display logo watermarks at the top right corner, but the individual regional broadcasting organisations’ TV channels may show their logos at either the top left or the top right (for instance, BR and HR’s TV channels use the top left for their logos, but MDR Fernsehen and RBB Fernsehen use the top right). Commercial network ProSiebenSat.1 Media, like ARD, uses the top right corner for all its channels, such as ProSieben, Sat.1, kabel eins and sixx. (However, Sat.1 used the top left corner until 2001, and again between 2008 and 2009.) But secondary public broadcaster ZDF and commercial broadcaster Mediengruppe RTL Deutschland use the top left corner for their channels, such as ZDF, RTL or VOX (exceptions in RTL's case are youth-oriented commercial channel RTL Zwei and news channel n-tv, whose logos are displayed at neither the top left nor the top right but the bottom right). News channel Welt (formerly N24) does not use any of these corners for its logo: its logo is placed in the bottom left corner. Another channel using this corner is documentary and parliament channel Phoenix, which moved its logo from the top left to the bottom left during its June 2018 rebrand. Channels (except Phoenix) that are collaborations between ARD and ZDF (e.g., KiKa), or between ARD, ZDF and foreign broadcasters (e.g., Arte, a collaboration with France Télévisions, and 3sat, a collaboration with SRG SSR and ORF), use the top left corner. Greece On all Greek network television networks, DOGs appear on the top left corner of the screen, with the exception of Skai TV, which moved its logo from the top left to the top right as part of its rebrand in October 2018. Since 1997, almost all television stations in Greece keep their logos on the screen their logos during advertisements, although in channels such as Skai TV the logo becomes transparent. Hong Kong Hong Kong TV introduced DOGs in 1994. Hong Kong DOGs can be either color or semi-transparent and always removed during commercial breaks. Television Broadcasts Limited (TVB) placed their logos at top-right corner of the screen while now-defunct Asia Television and other channels placed their logos at top-left corner of the screen. Sometimes,