SEVERAL MEMBERS of Israel's entertainment industry are passionate about particular causes. Orna Banai and Aviva Marks are both active in efforts to prevent cruelty to animals. Sophie Tzadka joined the Greens to fight for environmental protection. Actor and sometime comedian Shai Avivi is also gung-ho about the environment - so much so that together with Dan Shirai, he has introduced an additional facet into the annual Love Festival on the Dead Sea. This year, festival participants will also have two days of movies that will in some way be related to ecology and environmental issues. The whole idea is to create more awareness and to get individuals to think a little more about the planet on which they live, the country in which they live, and what is happening in their immediate environment. JUST AS television journalists who work for rival channels occasionally interview each other, so celebrities are being brought together on the Entertainment Channel to find out more about each other. Singer Harel Skaat chose to interview Gila Almagor, the doyenne of Israeli stage and screen, whom he considers to be one of the most fascinating women in the world, with one of the most riveting life stories. THE SECOND season of The Ambassador has introduced more glamor, more tension, and also more innovations and personalities than existed in the first season. It was surely not coincidental that Erez Tal's appearance as quizmaster dovetailed with the promos for his new Treasure Hunt show. Former Shabak chief Yaacov Perry who was one of the judges on the first season of the show, was replaced by General (Res) Gil Regev. But Perry will make a brief comeback to determine which of the candidates who was asked to return their portfolio will be given a second chance. IT'S ALL in the family. After Sasha Grishkov appeared as a finalist on A Star is Born, there was a gimmick season for singers over the age of 40 who had missed opportunities earlier in their lives and were being given another chance. Sasha's mother Yelena, who is both a singer and a songwriter, had her day in the sun, and has since made a CD featuring her own compositions. Now Ninette Taib's 17-year cousin Hen Arbib, is trying to emulate Ninette's success and is appearing in the fourth season of the Israeli version of American Idol. If success is in the genes, Ninette and Hen may yet do a doubles act. THE WEDDING date has been set for July. Israeli model, actress and former Miss World Linor Abargil and Lithuanian basketball player Sarunas Jasikevicius, announced their engagement only a month ago, and there was much speculation in the Israeli media as to whether the prospective groom would convert to Judaism. It seems that Jasikevicius, who now plays for the Indiana Pacers, will not. The wedding is due to take place in Barcelona in the first week of July, after which the newlyweds will come to Israel to celebrate.