David L: Im healthy, back at work and Ive quit drinking  the grass has never been greener David Leckie pictured in Paddington earlier this week. 62-year-old David Leckie, who has been receiving treatment at St Vincent's Hospital, was upbeat. HE has been hospitalised by a mystery stomach condition and recently collapsed while on holiday in Queensland; so it's not surprising friends of TV boss David Leckie are concerned about his health. But the 62-year-old, who has been receiving treatment in the gastroenterology unit of St Vincent's Hospital, remains upbeat: "I haven't seen the grass greener." He has given up alcohol and ­returned to work in a bid to regain his health. But it's his self-imposed booze-ban he claims has been a life-changer. "It's been five months," he said. I am much clearer thinking than I was. I get involved in a lot of little things, which is good. (Seven CEO) Tim Worner and his team are doing an absolutely sensational job. I am looking forward, not back. Mr Leckie said he would be soon ­relocating from a Seven office at Paddington to production headquarters at Australian Technology Park in Redfern. Friends say he is suffering health complications caused by excessive drinking and has spent more time in hospital than behind his desk as a ­Seven West Media director. Concern mounted over Mr Leckie's health when he collapsed and was hospitalised in Queensland in a critical condition while away with his children during the September and October school holidays. "He recognised when he was in hospital, seriously ill, that he had to do something major to continue to be part of his boys' lives," one friend said. Seven's corporate communications boss Simon Francis said Leckie, in his capacity as Executive Director Seven West (he's also a director of Seven West Holdings) has been back in his ­office advising and mentoring on everything from station promotions to scripts on forthcoming TV series. "He is absolutely engaged and every day he's talking to Seven about what's going on here," Francis said. He's embedded in the business. He continues to be involved on a day-to-day basis. He sees every pilot, reads scripts, is all over every promo, talks to our executives and offers guidance. He has a mentoring role and is across everything. The move from to Redfern's media centre represents yet another cultural shift for Leckie, who has been rubbing shoulders with the likes of businessmen John Singleton and Mark Carnegie at Underwood Street, a property owned by the men and used as their professional base. "He has probably contributed more to Australian television than anyone I could think of," a former media executive, who asked not to be named, said. His last significant initiative was the successful current affairs program Sunday Night, which has shaken the dominance of Nine's 60 Minutes. Soon after resigning as chief executive of Seven in June 2012, Mr Leckie paid $4.6 million for four-bedroom house on 42ha at Robertson in the Southern Highlands. Mr Leckie said he was spending as much time at the property as he could. He and his wife Skye also have a mansion at Centennial Park. The couple have two teenage boys and Mr Leckie has an older son from a previous marriage. Mr Leckie spent 12 days in an ­induced coma in 2008 after contracting the blood-poisoning disease, septicaemia. The infection was caused after he cut his finger on a garage door.