Complex sentence: Trevor McDonald presented the new flagship "ITV Evening News" at 6:30pm; a one-minute news summary was broadcast at 10pm; followed by the 20-minute "ITV Nightly News" at 11pm.
Split into simpler sentences: Trevor McDonald presented the new flagship "ITV Evening News" at 6:30pm. A one-minute news summary was broadcast at 10pm, followed by the 20-minute "ITV Nightly News" at 11pm.