on Sky Digital but following a large number of complaints they were removed just two months later. However, a BBC TWO DOG was used during the overnight BBC Learning Zone strand until 2015. The DOGs for the other channels appear at the top left-hand corner on other channels except BBC News (which is bottom left and forms part of integrated information graphics), its international counterpart, BBC World News, and BBC Parliament. The BBC News Channel's DOG does not appear when it airs Breakfast. Whilst BBC Four and BBC Parliament have static DOGs, the ones on CBBC and CBeebies alongside other channels such as Nick Jr. feature moving elements. ITV uses DOGs on all its channels, as do its counterparts STV in central and northern Scotland, and UTV in Northern Ireland. ITV doesn't use a DOG during news programming except for STV which uses a DOG for all news programming The logos on channels such as ITV (excluding STV), Channel 5, E4, E!, Disney XD, Sky Arts 1 and 2, Sky1, Sky2, Sky Sports, History, More4 and CITV are almost transparent, whereas others like those on Comedy Central, Disney Junior, some UKTV channels, CBBC, CBeebies, the Discovery channels, Nick Jr., Nicktoons, Boomerang and Nickelodeon are bright and noticeable. Sky Movies and Film4 do not use DOGs, but Channel 4 (starting on 19 June 2017), Channel 4 HD and the timeshift channel Channel 4+1 all do. Some stations display their on-screen graphics permanently. The UKTV channels remove them during commercials and trailers, with some Sky channels removing them altogether at certain times into a programme. In addition to a fixed (sometimes animated) motif, MTV includes the programme title in the top-right hand corner. During widescreen programmes, the DOGs on most channels including ITV, BBC Three, BBC Four, ITV2, ITV3, ITV4, CITV, CBBC, CBeebies, E4, and 4Music stay in the far corner of the screen, it is now rare for a channel to place their DOG in a 4:3 "title safe area". On digital systems such as Sky and Freeview, where stations have a set EPG number and a name displayed across the bottom of the screen when changing channel, DOGs have been deemed unnecessary by some users. Despite this, broadcasters persist with the practice. In response to negative feedback, the BBC has responded, "We believe it is important to ensure that viewers can quickly identify when they are watching a BBC service."