Answer by taking a quote from the following article:

Howard was born in Atlanta, to Dwight Sr. and Sheryl Howard, and into a family with strong athletic connections. His father is a Georgia State Trooper and serves as Athletic Director of Southwest Atlanta Christian Academy, a private academy with one of the best high school basketball programs in the country, while his mother played on the inaugural women's basketball team at Morris Brown College. Howard's mother had seven miscarriages before he was born. A devout Christian since his youth, Howard became serious about basketball around the age of nine; when in the eighth grade, he resolved to be selected as the number one pick in the NBA Draft one day.

Before he was drafted in 2004, Howard said that he wanted to use his NBA career and Christian faith to "raise the name of God within the league and throughout the world". He has stated he believes in reaching out to his community and fans and thus contributes substantially in the field of philanthropy. An avid listener of Gospel music, he attends the Fellowship of Faith Church when he is back home in Atlanta and is involved and active with the youth programs at the church. Together with his parents, Howard also established the Dwight D. Howard Foundation Inc. in 2004. The Foundation provides scholarships for students who want to attend his alma mater, Southwest Atlanta Christian Academy, and grants to Lovell Elementary School and Memorial Middle School in Orlando, Florida. The Foundation also organizes summer basketball camps for boys and girls, and together with high school and college coaches and players, fellow NBA players are invited to be on hand at the camp. For his contributions in the Central Florida community, Howard received in 2005 the Rich and Helen De Vos Community Enrichment Award. Within the NBA itself, Howard has participated in several NBA "Read to Achieve" assemblies encouraging children to make reading a priority. In November 2009, the center was named one of the 10 finalists for the Jefferson Awards for Public Service, which awards athletes for their charitable work. In 2009, Howard, along with several other NBA players, joined the Hoops for St. Jude charity program benefitting the St. Jude Children's Research Hospital.  Elsewhere, Howard appeared as a special guest on an episode of the ABC series Extreme Makeover: Home Edition that aired April 2, 2006, in which Ty Pennington and his team built a new home and ministry offices for Sadie Holmes, who operates a social services ministry in the Orlando area. He made another appearance on the show in the October 9, 2011 episode.  Along with Sam Worthington and Jonah Hill, Howard appeared in a commercial for the video game Call of Duty: Modern Warfare 3.  Howard, along with Carmelo Anthony and Scottie Pippen, also appeared in the 2013 Chinese film Amazing, a joint venture between the NBA and Shanghai Film Group Corporation.  In 2014, Epix featured Howard as the focal point of a documentary about his life called In the Moment. The film was directed by Ross Greenburg and Executive Producers include Michael D. Ratner and Matthew Weaver.

Did he like being on that show?
He made another appearance on the show in the October 9, 2011 episode.