Prehistoric Park

6 Episode s . Using his knowledge of today’s animal kingdom and the latest research, wildlife adventurer Nigel Marven uses a time portal to take him into the past, on a quest to rescue long lost prehistoric creatures.

Zoboomafoo

65 Episode s . Zoboomafoo is an American children's television series that aired from January 25, 1999, to April 28, 2001, and is still shown today in syndication depending on the area, and it is regularly shown on PBS Kids Sprout. A total of 65 episodes were aired. A creation of the Kratt Brothers, it features a talking Coquerel's Sifaka, a type of lemur, named Zoboomafoo, or Zoboo for short, and a collection of repeat animal guests. Every episode begins with the Kratt brothers in "Animal Junction", a peculiar place in which the rules of nature change and wild animals come to visit and play. After January 16, 2004, the show was pulled from its weekday airing on most PBS stations, though some continue to air the show.

Bill Nye the Science Guy

100 Episode s . It's "Mr. Wizard" for a different decade. Bill Nye is the Science Guy, a host who's hooked on experimenting and explaining. Picking one topic per show (like the human heart or electricity), Nye gets creative with teaching kids and adults alike the nuances of science.

The Crocodile Hunter

87 Episode s . A wildlife documentary television series that was hosted by Steve Irwin and his wife Terri.

Time Team

239 Episode s . Time Team is a British television series which has been aired on British Channel 4 from 1994. Created by television producer Tim Taylor and presented by actor Tony Robinson, each episode featured a team of specialists carrying out an archaeological dig over a period of three days, with Robinson explaining the process in layman's terms. This team of specialists changed throughout the series' run, although has consistently included professional archaeologists such as Mick Aston, Carenza Lewis, Francis Pryor and Phil Harding. The sites excavated over the show's run have ranged in date from the Palaeolithic right through to the Second World War.

Antiques Roadshow

905 Episode s . Antiques Roadshow is a British television show in which antiques appraisers travel to various regions of the United Kingdom to appraise antiques brought in by local people. It has been running since 1979. There are also international versions of the programme.

Antikrundan

70 Episode s . Antikrundan is the Swedish version of the original BBC format Antiques Roadshow. The show visits different locations in Sweden and lets people bring their antiques to be valued by experts. It remains popular and often has more than 2 million viewers. The 19th season was shown in 2009. Most of the experts have been with the programme since the start. Jesper Aspegren was the original host. He left in 1999 and was succeeded by Anne Lundberg. Antikrundan started out as a coproduction between SVT Malmö and the BBC where the Antiques Roadshow would visit Scandinavia for two programmes. Antikrundan premiered in August 1989 on TV2 and has since been shown on SVT every year. Antiques Roadshow is shown on BBC Lifestyle and TV8 in Sweden.

Omnibus

136 Episode s . Omnibus is an American, commercially sponsored, educational television series.

You Are There

153 Episode s . You Are There is an American historical educational television and radio series broadcast over the CBS Radio and CBS Television networks.

The Johns Hopkins Science Review