Simplify the following text for a Grade 10 native English-speaking person.
Original: The weather symbols were replaced in May 2005 after 29 years and 9 months on air by a controversial format as the forecast underwent another redesign , with the flat map replaced by a 3D globe , and weather conditions shown by colored areas .
Simplified: 16 May 2005 saw the end of the weather symbols on television after 29 years and 9 months on air . They were replaced by a controversial format as the forecast underwent another redesign , with the flat map replaced by a 3D globe , and weather conditions shown by colored areas .