湖南卫视对于《百科全说》的定位是“第一档职业生活智慧脱口秀”。是湖南卫视的一档全民励志，学以致用，满足当下国民精神和生活实用诉求的百科全书式综艺娱乐脱口秀节目，这是一档真正最贴近娱乐脱口秀形态，同时蕴含丰富生活实用信息的带状节目。
该角色扮演推理游戏真人秀融合“角色扮演+推理游戏”两大趣味，六位明星玩家将选择案件中五个嫌疑人与一个侦探进行角色扮演和推理。第六季还开创了全新的双侦探模式，一位素人玩家也将作为侦探参与探案。玩家们通过不在场证明、现场搜证、集中讨论等环节摆脱自己的嫌疑，最后找出“真凶”。
第四季由邓超、陈赫、鹿晗、范志毅、宝石gem、王勉继续组团出游，今年他们将走向世界，开启更大范围的草率旅行，去征服更多的山川湖海。
爆梗脱口秀，金句天天有~
The eighteenth season of the American competitive reality television series Hell's Kitchen (officially known as Hell's Kitchen: Rookies vs. Veterans) began airing on September 28, 2018 on Fox. Gordon Ramsay returns as host and head chef, and Season 10 winner Christina Wilson and British MasterChef judge James "Jocky" Petrie return as the red and blue sous chefs, respectively, alongside maitre'd Marino Monferrato. This season features eight new contestants battling eight returning veterans. For the first time, the winner of this season will receive a position as an executive chef at Gordon Ramsay Hell's Kitchen Restaurant at Caesars Palace in Las Vegas, Nevada. This is the first season since season 1 to not begin with men on the blue team and women on the red team. It is also the third of the last four seasons to feature a chef eliminated during service, the first season since season 13 that no chef from the winning team was eliminated, and the first season since season 12 where two chefs quit. This is also the first season to have a chef quit before the finals. Ariel Contreras-Fox, who previously finished in third place on Season 6, won the competition; she is the second consecutive returnee, and sixth consecutive woman to do so. She is also the ninth contestant to win the competition without being nominated for elimination once, after Kimberly-Ann Ryan, Meghan Gill, La Tasha McCutchen, Christina Wilson, Holli Ugalde, Dave Levey, Heather West, and Michael Wray.
北上熱潮持續，一眾吃貨主持彭慧中、林秀怡、梁凱晴、梁超怡、廖慧儀前往深圳與珠海，遍找港人趨之若鶩的美食好玩板塊，除了抵食推介之外，也引領大家到特色Cafe、民宿、景點盡情打卡。網絡上不乏播主唱好的人氣商品、食品，到底是「服」還是「伏」？交由主持們為大家實試。除此之外，主持們亦在香港為大家爭取着數福利，召集餐廳透過各類折扣優惠，刺激市民平日留港消費，同時吸引外地遊客，為振興本地飲食業出力！
