and after each commercial break, but this has since changed to appear during the whole duration of the programme and removed during commercial breaks). Logos of television channels are mainly in colour, but in some channels (such as almost all Astro-branded channels) the logo used may be transparent and/or white, while NTV7 used transparent logo for several years before Media Prima's acquisition and later, it changed to colour but toned down before turning into full-colour. In foreign television channels on Unifi TV and Astro, the channel logos are almost never removed during breaks, but during replaced promos, the logo is removed (although some channels removed the logo in the same way as locally operated channels). Mexico In Mexico Once TV and XEIMT-TV were the first channels to use their logos permanently in the top-right of the screen since 1997. The channels of Televisa and TV Azteca did not start use logos permanently until 2000 and 2004 respectively, in their channels. Mongolia Mongolian TV introduced DOGs in early 2000s. This make Mongolia the latest East Asian country to introduce DOGs. MNB displays their logo on top-left corner of the screen while private channels place their logos on top-right corner of the screen. Morocco The SNRT and 2M use permanent on-screen DOGs for their TV channels. In contrast, other channels including Medi 1 TV and Télé Maroc hide their DOGs during commercial breaks. Myanmar (Burma) Burmese TV introduced DOGs for all programmes since 2003. However, usage of DOGs dated back to 1998, but displayed only for a short time. All Burmese DOGs are full-color and always displayed on top-right corner of the screen. Nepal Nepali television channels introduced DOGs in mid-1990s. Like its neighbor India, All Nepali DOGs are full-color, opaque and never transparent. They are displayed permanently on either top-left or top-right corner of the screen, even commercial breaks or end of transmissions. Netherlands Most Dutch channels, including Belgian Dutch channels (i.e., in Flanders), place their logos in the top left corner of the screen. Examples are the two main commercial TV broadcasters in the Netherlands, RTL Nederland and Talpa Network; the public broadcaster in Flanders, VRT; and the Flemish commercial broadcasters, DPG Media and De Vijver Media. However, NPO, the public broadcasting consortium in the Netherlands, displays its logo bugs in the top right corner of the screen, and the logo bug of the presenting broadcaster (such as NOS, AVROTROS