Background: Ernest Edward "Ernie" Kovacs (January 23, 1919 - January 13, 1962) was an American comedian, actor, and writer. Kovacs's visually experimental and often spontaneous comedic style influenced numerous television comedy programs for years after his death. Many individuals and shows, such as Johnny Carson, David Letterman, Rowan and Martin's Laugh-In, Saturday Night Live, Monty Python's Flying Circus, Jim Henson, Max Headroom, Chevy Chase, Conan O'Brien, Jimmy Kimmel, Captain Kangaroo, Sesame Street, The Electric Company, Dave Garroway, Uncle Floyd, and many others have credited Kovacs as an influence. Chevy Chase thanked Kovacs during his acceptance speech for his Emmy award for Saturday Night Live.
Context: Kovacs's father Andrew emigrated from Hungary at age 13. He worked as a policeman, restaurateur, and bootlegger; the last so successfully that he moved his wife Mary, and sons Tom and Ernie, into a 20-room mansion in the better part of Trenton. Though a poor student, Kovacs was influenced by his Trenton Central High School drama teacher, Harold Van Kirk, and received an acting scholarship to the American Academy of Dramatic Arts in 1937 with Van Kirk's help. The end of Prohibition and the Depression resulted in difficult financial times for the family. When Kovacs began drama school, all he could afford was a fifth floor walk-up apartment on West 74th Street in New York City. During this time, he watched many "Grade B" movies; admission was only ten cents. Many of these movies influenced his comedy routines later. A 1938 local newspaper photograph shows Kovacs as a member of the Prospect Players, not yet wearing his trademark mustache. Like any aspiring actor, Kovacs used his class vacation time to pursue roles in summer stock companies. While working in Vermont during 1939, he became so seriously ill with pneumonia and pleurisy that his doctors didn't expect him to survive. During the next year and a half, his comedic talents developed as he entertained both doctors and patients with his antics during stays at several hospitals. While hospitalized, Kovacs developed a lifelong love of classical music by the gift of a radio, which he kept tuned to WQXR. By the time he was released, his parents had separated, and Kovacs went back to Trenton, living with his mother in a two-room apartment over a store. He began work as a cigar salesman, which resulted in a lifelong cigar-smoking habit. Kovacs's first paid entertainment work was during 1941, as an announcer for Trenton's radio station WTTM. He spent the next nine years with WTTM, becoming the station's director of Special Events; in this job he did things like trying to see what it was like to be run over by a train (leaving the tracks at the last minute) and broadcasting from the cockpit of a plane for which he took flying lessons. Kovacs was also involved with local theater; a local newspaper published a photograph of him and the news that he was doing some directing for the Trenton Players Guild in early 1941. The Trentonian, a local weekly newspaper, offered Kovacs a column in June 1945; he named it "Kovacs Unlimited".
Question: anyone else he worked with?
Answer: for the Trenton Players Guild in

Background: Rouvas was born on 5 January 1972 in the village of Mandoukion, near Corfu City on the island of Corfu, the eldest of four sons of Konstantinos "Kostas" Rouvas (an ambulance driver) and the teenaged Anna-Maria Panaretou (a duty-free shop clerk at the local airport). He has three brothers: Billy (b. Vasilios), Tolis (b. Apostolos, 1975) and Nikos (b. Nikolaos, 1991). The family was poor, and Rouvas began taking care of his brothers at age five. At age four, he exhibited athletic ability and took ballet classes as a child.
Context: After moving to Patras, Rouvas continued to look for performance opportunities until he met Dakis (a popular Greek artist who was the first person to help him professionally). Rouvas moved to Athens, and made his first professional appearance in 1991 at the Show Centre. His showmanship attracted the attention of music executives such as Nikos Mouratidis, who encouraged songwriter Giorgos Pavrianos to produce him. Rouvas, singing Michael Jackson's "Man in the Mirror" was discovered by PolyGram executives who signed him to his first recording contract. After moving to Athens he lived with an older English woman named Sally, with whom he had begun a relationship on Corfu. Their relationship ended when Psinakis became Rouvas' manager, and the singer became more career-oriented. The media has speculated about Rouvas' personal life and relationships with model Zeta Logotheti, Sofi Kantarou (a Corfu bar manager) and singer Elli Kokkinou. Several months later he debuted at the Thessaloniki Song Festival, losing Best Vocal Performance to Giorgos Alkaios but singing the Best Composition ("Par'ta"; "Take Them", with music by Nikos Terzis and lyrics by Giorgos Pavrianos). There was a brief earthquake during the festival. Rouvas released his eponymous debut album, which topped the Greek Albums Chart, the day after the festival. "Par'ta" became a radio hit, and other songs of the album such as "1992", "Ego S'agapo" ("I Love You") and "Gia Fantasou" ("Imagine") also became popular. In September 1992 Rouvas released his second album, Min Andistekese (Don't Resist), also composed by Nikos Terzis. It produced the singles "Gyrna" ("Return"), "Min Andistekese", "Na Ziseis Moro Mou" ("Live, My Baby") and "Me Kommeni Tin Anasa" ("Breathless"), with a music video of the title track. The album's success helped establish Rouvas at the top of the Greek music scene. In October 1993 Rouvas released his third album, Gia Sena (For You), with music by Alexis Papadimitriou and lyrics by Eleni Giannatsoulia and Evi Droutsa. The single "Kane Me" ("Make Me") became a radio hit, with "To Xero Eisai Moni" ("I Know You Are Alone") and "Xehase To" ("Forget It") also receiving airplay.
Question: what happened in 1991
Answer:
made his first professional appearance in 1991 at the Show Centre.