input: In the following months, Jericho became a major force in The Invasion storyline in which WCW and ECW joined forces to overtake the WWF. Jericho remained on the side of the WWF despite previously competing in WCW and ECW. However, Jericho began slow turning into a villain by showing jealousy toward fellow WWF member The Rock. They faced each other in a match at No Mercy for the WCW Championship after Jericho defeated Rob Van Dam in a number one contenders match. Jericho won the WCW Championship when he pinned The Rock after debuting a new finisher, the Breakdown, onto a steel chair, winning his first world title in the process. One night later, the two put their differences aside and won the WWF Tag Team title from the Dudley Boyz. After they lost the title to Test and Booker T, they continued their feud. On the November 5 episode of Raw, The Rock defeated Jericho to regain the WCW Championship. Following the match, Jericho attacked The Rock with a steel chair. At Survivor Series, Jericho solidified his heel turn by almost costing The Rock, and the WWF, victory in their elimination matchup by attacking The Rock again. At Vengeance, Jericho defeated both The Rock for the WCW Championship (unbranded and only referred to as the World Championship following Survivor Series) and Stone Cold Steve Austin for his first WWF Championship on the same night to become the first wrestler to hold both championships at the same time, which made him the first-ever Undisputed WWF Champion, as well as the fourth Grand Slam winner under the original format. He retained the title at Royal Rumble against The Rock and at No Way Out against Austin. Jericho later lost the title to Triple H in the main event of WrestleMania X8. After his title loss, Jericho became a member of the SmackDown! roster and continued his feud with Triple H. The rivalry culminated at Judgment Day when Triple H defeated Jericho in a Hell in a Cell match.

Answer this question "What WWF was undisputed"
output: to become the first wrestler to hold both championships at the same time, which made him the first-ever Undisputed WWF Champion,

Problem: Background: Gloria Estefan (nee Fajardo; born September 1, 1957) is a Cuban-American singer, songwriter, actress, and businesswoman. She started off her career as the lead singer in the group called "Miami Latin Boys" which was eventually known as Miami Sound Machine. Estefan's breakthrough success with "Conga" in 1985 made her known worldwide. The song became Estefan's signature song and led to the Miami Sound Machine winning the grand prix in the 15th annual Tokyo Music Festival in 1986.
Context: Starting in 1977, Miami Sound Machine began recording and releasing various albums and 45s on the Audiofon Records label in Miami. The first album from 1977 was entitled Live Again/Renacer and was released with two different covers. After several more releases on the Audiofon label as well as the RCA Victor label and Miami Sound Machine's own label MSM Records, the band was signed to Discos CBS International and released several albums, 45s, and 12"s beginning with the 1978 self-titled album Miami Sound Machine. Growing in popularity in both the U.S. and around the world, the group would continue recording and issuing various works for Discos CBS International through 1985. In 1984, Miami Sound Machine released their first Epic/Columbia album, Eyes of Innocence, which contained the dance hit "Dr. Beat" as well as the ballad "I Need Your Love". Their more successful follow-up album Primitive Love was released in 1985 launching three Top 10 hits on the Billboard Hot 100: "Conga" (U.S. No. 10), "Words Get in the Way" (U.S. No. 5), and "Bad Boy" (U.S. No. 8), as well as "Falling in Love (Uh-Oh)" (U.S. No. 25) which became follow up hits in the U.S. and around the world. "Words Get in the Way" reached No. 1 on the US Hot Adult Contemporary Tracks chart, establishing that the group could perform pop ballads as successfully as dance tunes. The song "Hot Summer Nights" was also released that year and was part of the film Top Gun. Their next album, 1987's Let It Loose, went multi-platinum, with three million copies sold in the US alone. It featured the following hits: "Anything for You" (No. 1 Hot 100), "1-2-3" (No. 3 Hot 100), "Betcha Say That" (No. 36 Hot 100), "Rhythm Is Gonna Get You" (No. 5 Hot 100), and "Can't Stay Away from You" (No. 6 Hot 100). "Can't Stay Away From You", "Anything for You", and "1-2-3" were all No. 1 Adult Contemporary hits as well. In that same year, Estefan took top billing and the band's name changed to Gloria Estefan and Miami Sound Machine. In 1989, the group's name was dropped, and Estefan has been credited as a solo artist ever since. In 1988, after the worldwide chart success of single "Anything for You", her Let it Loose album was repackaged as Anything for You.
Question: What was their biggest hit?
Answer: Words Get in the Way" reached No. 1 on the US Hot Adult Contemporary Tracks

Question: John Logie Baird FRSE (; 13 August 1888 - 14 June 1946) was a Scottish engineer, innovator, one of the inventors of the mechanical television, demonstrating the first working television system on 26 January 1926, and inventor of both the first publicly demonstrated colour television system, and the first purely electronic colour television picture tube. In 1928 the Baird Television Development Company achieved the first transatlantic television transmission. Baird's early technological successes and his role in the practical introduction of broadcast television for home entertainment have earned him a prominent place in television's history.

Some of Baird's early inventions were not fully successful. In his twenties he tried to create diamonds by heating graphite and shorted out Glasgow's electricity supply. Later Baird invented a glass razor, which was rust-resistant, but shattered. Inspired by pneumatic tyres he attempted to make pneumatic shoes, but his prototype contained semi-inflated balloons, which burst. He also invented a thermal undersock (the Baird undersock), which was moderately successful. Baird suffered from cold feet, and after a number of trials, he found that an extra layer of cotton inside the sock provided warmth. Baird's numerous other developments demonstrated his particular talent at invention. He was a visionary and began to dabble with electricity. In 1928, he developed an early video recording device, which he dubbed Phonovision. The system consisted of a large Nipkow disk attached by a mechanical linkage to a conventional 78-rpm record-cutting lathe. The result was a disc that could record and play back a 30-line video signal. Technical difficulties with the system prevented its further development, but some of the original phonodiscs have been preserved, and have since been restored by Donald McLean, a Scottish electrical engineer. Baird's other developments were in fibre-optics, radio direction finding, infrared night viewing and radar. There is discussion about his exact contribution to the development of radar, for his wartime defence projects have never been officially acknowledged by the UK government. According to Malcolm Baird, his son, what is known is that in 1926 Baird filed a patent for a device that formed images from reflected radio waves, a device remarkably similar to radar, and that he was in correspondence with the British government at the time. The radar contribution is in dispute. According to some experts, Baird's "noctovision" is not radar. Unlike radar (except Doppler radar), Noctovision is incapable of determining the distance to the scanned subject. Noctovision also cannot determine the coordinates of the subject in three-dimensional space.

Using a quote from the above article, answer the following question: Were there any problems with it?
HHHHHH
Answer:
Technical difficulties with the system prevented its further development, but some of the original phonodiscs have been preserved, and have since been restored by Donald McLean,